122111212102120 has 32 divisors (see below), whose sum is σ = 276173803554120. Its totient is φ = 48591404605440.

The previous prime is 122111212102073. The next prime is 122111212102153. The reversal of 122111212102120 is 21201212111221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 88881037050276 + 33230175051844 = 9427674^2 + 5764562^2 .

It is a super-2 number, since 2×122111212102120² (a number of 29 digits) contains 22 as substring.

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, 7908749541 + ... + 7908764980.

Almost surely, 2^{122111212102120} is an apocalyptic number.

122111212102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111212102120 is an abundant number, since it is smaller than the sum of its proper divisors (154062591452000).

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

122111212102120 is a wasteful number, since it uses less digits than its factorization.

122111212102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15817514725 (or 15817514721 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122111212102120 its reverse (21201212111221), we get a palindrome (143312424213341).

The spelling of 122111212102120 in words is "one hundred twenty-two trillion, one hundred eleven billion, two hundred twelve million, one hundred two thousand, one hundred twenty".