122111111100120 has 32 divisors (see below), whose sum is σ = 366333333300720. Its totient is φ = 32562962960000.

The previous prime is 122111111100107. The next prime is 122111111100163. The reversal of 122111111100120 is 21001111111221.

It is a super-2 number, since 2×122111111100120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122111111100120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508796296131 + ... + 508796296370.

Almost surely, 2^{122111111100120} is an apocalyptic number.

122111111100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111111100120 is an abundant number, since it is smaller than the sum of its proper divisors (244222222200600).

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

122111111100120 is a wasteful number, since it uses less digits than its factorization.

122111111100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017592592515 (or 1017592592511 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 122111111100120 its reverse (21001111111221), we get a palindrome (143112222211341).

The spelling of 122111111100120 in words is "one hundred twenty-two trillion, one hundred eleven billion, one hundred eleven million, one hundred thousand, one hundred twenty".