22010203231 has 4 divisors (see below), whose sum is σ = 23168635000. Its totient is φ = 20851771464.

The previous prime is 22010203219. The next prime is 22010203247. The reversal of 22010203231 is 13230201022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13230201022 = 2 ⋅6615100511.

It is not a de Polignac number, because 22010203231 - 2¹¹ = 22010201183 is a prime.

It is a super-2 number, since 2×22010203231² (a number of 21 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 (22010203291) 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, 579215856 + ... + 579215893.

It is an arithmetic number, because the mean of its divisors is an integer number (5792158750).

Almost surely, 2^22010203231 is an apocalyptic number.

22010203231 is a deficient number, since it is larger than the sum of its proper divisors (1158431769).

22010203231 is a wasteful number, since it uses less digits than its factorization.

22010203231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158431768.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22010203231 its reverse (13230201022), we get a palindrome (35240404253).

The spelling of 22010203231 in words is "twenty-two billion, ten million, two hundred three thousand, two hundred thirty-one".