22237005231 has 12 divisors (see below), whose sum is σ = 36708707152. Its totient is φ = 12706860096.

The previous prime is 22237005229. The next prime is 22237005233. The reversal of 22237005231 is 13250073222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22237005229) and next prime (22237005233).

It is not a de Polignac number, because 22237005231 - 2¹ = 22237005229 is a prime.

It is a super-2 number, since 2×22237005231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22237005195 and 22237005204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22237005233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176484106 + ... + 176484231.

Almost surely, 2^22237005231 is an apocalyptic number.

22237005231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22237005231 is a deficient number, since it is larger than the sum of its proper divisors (14471701921).

22237005231 is a wasteful number, since it uses less digits than its factorization.

22237005231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352968350 (or 352968347 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

Adding to 22237005231 its reverse (13250073222), we get a palindrome (35487078453).

The spelling of 22237005231 in words is "twenty-two billion, two hundred thirty-seven million, five thousand, two hundred thirty-one".