12122222102120 has 64 divisors (see below), whose sum is σ = 31100904691920. Its totient is φ = 4212609306624.

The previous prime is 12122222102093. The next prime is 12122222102131. The reversal of 12122222102120 is 2120122222121.

It can be written as a sum of positive squares in 8 ways, for example, as 5941240501156 + 6180981600964 = 2437466^2 + 2486158^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12122222102092 and 12122222102101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685637207 + ... + 685654886.

Almost surely, 2^{12122222102120} is an apocalyptic number.

12122222102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122222102120 is an abundant number, since it is smaller than the sum of its proper divisors (18978682589800).

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

12122222102120 is a wasteful number, since it uses less digits than its factorization.

12122222102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371292134 (or 1371292130 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12122222102120 its reverse (2120122222121), we get a palindrome (14242344324241).

The spelling of 12122222102120 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty-two million, one hundred two thousand, one hundred twenty".