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122122111202020 = 2258910768525543
BaseRepresentation
bin11011110001000111000101…
…000011101011001011100100
3121000101202111220101200010101
4123301013011003223023210
5112001322040431431040
61111422042352433444
734503013521605446
oct3361070503531344
9530352456350111
10122122111202020
1135a03773069476
12118440bbb48884
13531b0b1388c67
142222a553ca496
15e1ba22b1509a
hex6f11c50eb2e4

122122111202020 has 24 divisors (see below), whose sum is σ = 256459315339584. Its totient is φ = 48848295563616.

The previous prime is 122122111201999. The next prime is 122122111202029. The reversal of 122122111202020 is 20202111221221.

It is not an unprimeable number, because it can be changed into a prime (122122111202029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32480632 + ... + 36044911.

It is an arithmetic number, because the mean of its divisors is an integer number (10685804805816).

Almost surely, 2122122111202020 is an apocalyptic number.

122122111202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122122111202020 is an abundant number, since it is smaller than the sum of its proper divisors (134337204137564).

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

122122111202020 is a wasteful number, since it uses less digits than its factorization.

122122111202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68614659 (or 68614657 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122122111202020 its reverse (20202111221221), we get a palindrome (142324222423241).

The spelling of 122122111202020 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, one hundred eleven million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 89107 178214 356428 445535 891070 1782140 68525543 137051086 274102172 342627715 685255430 1370510860 6106105560101 12212211120202 24424422240404 30530527800505 61061055601010 122122111202020