22111011122021 has 16 divisors (see below), whose sum is σ = 22961907878400. Its totient is φ = 21268822276800.

The previous prime is 22111011121967. The next prime is 22111011122041. The reversal of 22111011122021 is 12022111011122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111011122021 is a prime.

It is a super-2 number, since 2×22111011122021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111011122041) 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, 11712611 + ... + 13468751.

It is an arithmetic number, because the mean of its divisors is an integer number (1435119242400).

Almost surely, 2^{22111011122021} is an apocalyptic number.

It is an amenable number.

22111011122021 is a deficient number, since it is larger than the sum of its proper divisors (850896756379).

22111011122021 is a wasteful number, since it uses less digits than its factorization.

22111011122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758620.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22111011122021 its reverse (12022111011122), we get a palindrome (34133122133143).

The spelling of 22111011122021 in words is "twenty-two trillion, one hundred eleven billion, eleven million, one hundred twenty-two thousand, twenty-one".