22110222222021 has 12 divisors (see below), whose sum is σ = 30120882191072. Its totient is φ = 14426527970328.

The previous prime is 22110222222001. The next prime is 22110222222089. The reversal of 22110222222021 is 12022222201122.

It is not a de Polignac number, because 22110222222021 - 2¹⁸ = 22110221959877 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 (22110222222001) 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 11 ways as a sum of consecutive naturals, for example, 1668185785 + ... + 1668199038.

Almost surely, 2^{22110222222021} is an apocalyptic number.

It is an amenable number.

22110222222021 is a deficient number, since it is larger than the sum of its proper divisors (8010659969051).

22110222222021 is an equidigital number, since it uses as much as digits as its factorization.

22110222222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336384920 (or 3336384873 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22110222222021 its reverse (12022222201122), we get a palindrome (34132444423143).

The spelling of 22110222222021 in words is "twenty-two trillion, one hundred ten billion, two hundred twenty-two million, two hundred twenty-two thousand, twenty-one".