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122121120113020 = 22574336097561983
BaseRepresentation
bin11011110001000110001001…
…111110111110000101111100
3121000101122221211111010121101
4123301012021332332011330
5112001313023222104040
61111421400150142444
734502650125520240
oct3361061176760574
9530348854433541
10122121120113020
1135a03304681656
1211843a84051a24
13531ac83c4ba72
14222299d91c420
15e1b9b5ae409a
hex6f1189fbe17c

122121120113020 has 96 divisors (see below), whose sum is σ = 299915592818688. Its totient is φ = 40895169380352.

The previous prime is 122121120112967. The next prime is 122121120113093. The reversal of 122121120113020 is 20311021121221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217022949 + ... + 217584931.

It is an arithmetic number, because the mean of its divisors is an integer number (3124120758528).

Almost surely, 2122121120113020 is an apocalyptic number.

122121120113020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122121120113020 is an abundant number, since it is smaller than the sum of its proper divisors (177794472705668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122121120113020 is a wasteful number, since it uses less digits than its factorization.

122121120113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598139 (or 598137 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 122121120113020 its reverse (20311021121221), we get a palindrome (142432141234241).

The spelling of 122121120113020 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty million, one hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 43 70 86 140 172 215 301 430 602 860 1204 1505 3010 6020 36097 72194 144388 180485 252679 360970 505358 561983 721940 1010716 1123966 1263395 1552171 2247932 2526790 2809915 3104342 3933881 5053580 5619830 6208684 7760855 7867762 10865197 11239660 15521710 15735524 19669405 21730394 24165269 31043420 39338810 43460788 48330538 54325985 78677620 96661076 108651970 120826345 169156883 217303940 241652690 338313766 483305380 676627532 845784415 1691568830 3383137660 20285900351 40571800702 81143601404 101429501755 142001302457 202859003510 284002604914 405718007020 568005209828 710006512285 872293715093 1420013024570 1744587430186 2840026049140 3489174860372 4361468575465 6106056005651 8722937150930 12212112011302 17445874301860 24424224022604 30530280028255 61060560056510 122121120113020