121022111111201 has 4 divisors (see below), whose sum is σ = 121133038803504. Its totient is φ = 120911183418900.

The previous prime is 121022111111179. The next prime is 121022111111221. The reversal of 121022111111201 is 102111111220121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121022111111201 - 2²⁶ = 121022044002337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121022111111201.

It is not an unprimeable number, because it can be changed into a prime (121022111111221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55463844515 + ... + 55463846696.

It is an arithmetic number, because the mean of its divisors is an integer number (30283259700876).

Almost surely, 2^{121022111111201} is an apocalyptic number.

It is an amenable number.

121022111111201 is a deficient number, since it is larger than the sum of its proper divisors (110927692303).

121022111111201 is a wasteful number, since it uses less digits than its factorization.

121022111111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110927692302.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121022111111201 its reverse (102111111220121), we get a palindrome (223133222331322).

The spelling of 121022111111201 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred eleven million, one hundred eleven thousand, two hundred one".