122022020121 has 16 divisors (see below), whose sum is σ = 164343429120. Its totient is φ = 80524964880.

The previous prime is 122022020117. The next prime is 122022020137. The reversal of 122022020121 is 121020220221.

It is not a de Polignac number, because 122022020121 - 2² = 122022020117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122022020121.

It is not an unprimeable number, because it can be changed into a prime (122022020621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679536 + ... + 840126.

It is an arithmetic number, because the mean of its divisors is an integer number (10271464320).

Almost surely, 2^122022020121 is an apocalyptic number.

It is an amenable number.

122022020121 is a deficient number, since it is larger than the sum of its proper divisors (42321408999).

122022020121 is a wasteful number, since it uses less digits than its factorization.

122022020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163156.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122022020121 its reverse (121020220221), we get a palindrome (243042240342).

The spelling of 122022020121 in words is "one hundred twenty-two billion, twenty-two million, twenty thousand, one hundred twenty-one".