122001000011021 has 32 divisors (see below), whose sum is σ = 135134552199168. Its totient is φ = 109554648698880.

The previous prime is 122001000011017. The next prime is 122001000011053. The reversal of 122001000011021 is 120110000100221.

It is a cyclic number.

It is not a de Polignac number, because 122001000011021 - 2² = 122001000011017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122001000010993 and 122001000011011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001000011521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1161607316 + ... + 1161712338.

It is an arithmetic number, because the mean of its divisors is an integer number (4222954756224).

Almost surely, 2^{122001000011021} is an apocalyptic number.

It is an amenable number.

122001000011021 is a deficient number, since it is larger than the sum of its proper divisors (13133552188147).

122001000011021 is a wasteful number, since it uses less digits than its factorization.

122001000011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112541.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 122001000011021 its reverse (120110000100221), we get a palindrome (242111000111242).

The spelling of 122001000011021 in words is "one hundred twenty-two trillion, one billion, eleven thousand, twenty-one".