22102220231 has 48 divisors (see below), whose sum is σ = 30413376000. Its totient is φ = 15846570432.

The previous prime is 22102220227. The next prime is 22102220237. The reversal of 22102220231 is 13202220122.

It is not a de Polignac number, because 22102220231 - 2² = 22102220227 is a prime.

It is a super-2 number, since 2×22102220231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102220237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238670 + ... + 318068.

It is an arithmetic number, because the mean of its divisors is an integer number (633612000).

Almost surely, 2^22102220231 is an apocalyptic number.

22102220231 is a deficient number, since it is larger than the sum of its proper divisors (8311155769).

22102220231 is a wasteful number, since it uses less digits than its factorization.

22102220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79468 (or 79461 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 22102220231 its reverse (13202220122), we get a palindrome (35304440353).

The spelling of 22102220231 in words is "twenty-two billion, one hundred two million, two hundred twenty thousand, two hundred thirty-one".