22231443031 has 24 divisors (see below), whose sum is σ = 28823500080. Its totient is φ = 16990670592.

The previous prime is 22231442983. The next prime is 22231443041. The reversal of 22231443031 is 13034413222.

It is not a de Polignac number, because 22231443031 - 2¹¹ = 22231440983 is a prime.

It is a super-2 number, since 2×22231443031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22231442987 and 22231443005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22231443041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 686500 + ... + 718153.

It is an arithmetic number, because the mean of its divisors is an integer number (1200979170).

Almost surely, 2^22231443031 is an apocalyptic number.

22231443031 is a deficient number, since it is larger than the sum of its proper divisors (6592057049).

22231443031 is a wasteful number, since it uses less digits than its factorization.

22231443031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404703 (or 1404696 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 22231443031 its reverse (13034413222), we get a palindrome (35265856253).

The spelling of 22231443031 in words is "twenty-two billion, two hundred thirty-one million, four hundred forty-three thousand, thirty-one".