22211022110021 has 4 divisors (see below), whose sum is σ = 22211152704000. Its totient is φ = 22210891516044.

The previous prime is 22211022109987. The next prime is 22211022110023. The reversal of 22211022110021 is 12001122011222.

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 22211022110021 - 2⁴² = 17812975598917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211022110023) 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, 65041541 + ... + 65382138.

It is an arithmetic number, because the mean of its divisors is an integer number (5552788176000).

Almost surely, 2^{22211022110021} is an apocalyptic number.

It is an amenable number.

22211022110021 is a deficient number, since it is larger than the sum of its proper divisors (130593979).

22211022110021 is a wasteful number, since it uses less digits than its factorization.

22211022110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130593978.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22211022110021 its reverse (12001122011222), we get a palindrome (34212144121243).

The spelling of 22211022110021 in words is "twenty-two trillion, two hundred eleven billion, twenty-two million, one hundred ten thousand, twenty-one".