120111122102121 has 12 divisors (see below), whose sum is σ = 173494049198080. Its totient is φ = 80073986249880.

The previous prime is 120111122102053. The next prime is 120111122102131. The reversal of 120111122102121 is 121201221111021.

It is a happy number.

120111122102121 is a `hidden beast` number, since 120 + 1 + 111 + 221 + 0 + 212 + 1 = 666.

It is not a de Polignac number, because 120111122102121 - 2²⁶ = 120111054993257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120111122102094 and 120111122102103.

It is not an unprimeable number, because it can be changed into a prime (120111122102131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 541656 + ... + 15508566.

Almost surely, 2^{120111122102121} is an apocalyptic number.

It is an amenable number.

120111122102121 is a deficient number, since it is larger than the sum of its proper divisors (53382927095959).

120111122102121 is a wasteful number, since it uses less digits than its factorization.

120111122102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15858596 (or 15858593 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 120111122102121 its reverse (121201221111021), we get a palindrome (241312343213142).

The spelling of 120111122102121 in words is "one hundred twenty trillion, one hundred eleven billion, one hundred twenty-two million, one hundred two thousand, one hundred twenty-one".