12120111020122 has 64 divisors (see below), whose sum is σ = 22249283420160. Its totient is φ = 4833296050176.

The previous prime is 12120111020029. The next prime is 12120111020131. The reversal of 12120111020122 is 22102011102121.

It is a super-2 number, since 2×12120111020122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12120111020096 and 12120111020105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217151143 + ... + 217206949.

It is an arithmetic number, because the mean of its divisors is an integer number (347645053440).

Almost surely, 2^{12120111020122} is an apocalyptic number.

12120111020122 is a deficient number, since it is larger than the sum of its proper divisors (10129172400038).

12120111020122 is a wasteful number, since it uses less digits than its factorization.

12120111020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66175.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12120111020122 its reverse (22102011102121), we get a palindrome (34222122122243).

The spelling of 12120111020122 in words is "twelve trillion, one hundred twenty billion, one hundred eleven million, twenty thousand, one hundred twenty-two".