122102121121 has 12 divisors (see below), whose sum is σ = 129773247120. Its totient is φ = 114861035840.

The previous prime is 122102121067. The next prime is 122102121157. The reversal of 122102121121 is 121121201221.

It is not a de Polignac number, because 122102121121 - 2³⁵ = 87742382753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122102121095 and 122102121104.

It is not an unprimeable number, because it can be changed into a prime (122102128121) 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, 465186 + ... + 678676.

It is an arithmetic number, because the mean of its divisors is an integer number (10814437260).

Almost surely, 2^122102121121 is an apocalyptic number.

It is an amenable number.

122102121121 is a deficient number, since it is larger than the sum of its proper divisors (7671125999).

122102121121 is a wasteful number, since it uses less digits than its factorization.

122102121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215504 (or 215487 counting only the distinct ones).

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

Adding to 122102121121 its reverse (121121201221), we get a palindrome (243223322342).

The spelling of 122102121121 in words is "one hundred twenty-two billion, one hundred two million, one hundred twenty-one thousand, one hundred twenty-one".