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122330320420 = 22571179435273
BaseRepresentation
bin111000111101101110…
…1001000111000100100
3102200202102002011011011
41301323131020320210
54001013030223140
6132110415152004
711560313365330
oct1617335107044
9380672064134
10122330320420
1147975305370
121b860215604
13b6c6c172a9
145cc6a287c0
1532ae865cea
hex1c7b748e24

122330320420 has 48 divisors (see below), whose sum is σ = 320283024768. Its totient is φ = 38128930560.

The previous prime is 122330320397. The next prime is 122330320457. The reversal of 122330320420 is 24023033221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 122330320391 and 122330320400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39716097 + ... + 39719176.

It is an arithmetic number, because the mean of its divisors is an integer number (6672563016).

Almost surely, 2122330320420 is an apocalyptic number.

122330320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122330320420 is an abundant number, since it is smaller than the sum of its proper divisors (197952704348).

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

122330320420 is a wasteful number, since it uses less digits than its factorization.

122330320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79435300 (or 79435298 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 122330320420 its reverse (24023033221), we get a palindrome (146353353641).

The spelling of 122330320420 in words is "one hundred twenty-two billion, three hundred thirty million, three hundred twenty thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 770 1540 79435273 158870546 317741092 397176365 556046911 794352730 873788003 1112093822 1588705460 1747576006 2224187644 2780234555 3495152012 4368940015 5560469110 6116516021 8737880030 11120938220 12233032042 17475760060 24466064084 30582580105 61165160210 122330320420