22202002212121 has 8 divisors (see below), whose sum is σ = 22212036518400. Its totient is φ = 22191970017360.

The previous prime is 22202002212097. The next prime is 22202002212167. The reversal of 22202002212121 is 12121220020222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22202002212121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22202002212721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20698695 + ... + 21744883.

It is an arithmetic number, because the mean of its divisors is an integer number (2776504564800).

Almost surely, 2^{22202002212121} is an apocalyptic number.

It is an amenable number.

22202002212121 is a deficient number, since it is larger than the sum of its proper divisors (10034306279).

22202002212121 is a wasteful number, since it uses less digits than its factorization.

22202002212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055759.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22202002212121 its reverse (12121220020222), we get a palindrome (34323222232343).

The spelling of 22202002212121 in words is "twenty-two trillion, two hundred two billion, two million, two hundred twelve thousand, one hundred twenty-one".