12223670438 has 24 divisors (see below), whose sum is σ = 21337151544. Its totient is φ = 5236728000.

The previous prime is 12223670411. The next prime is 12223670443. The reversal of 12223670438 is 83407632221.

It is a super-2 number, since 2×12223670438² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252233 + ... + 296763.

It is an arithmetic number, because the mean of its divisors is an integer number (889047981).

Almost surely, 2^12223670438 is an apocalyptic number.

12223670438 is a deficient number, since it is larger than the sum of its proper divisors (9113481106).

12223670438 is a wasteful number, since it uses less digits than its factorization.

12223670438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47348 (or 47341 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 12223670438 in words is "twelve billion, two hundred twenty-three million, six hundred seventy thousand, four hundred thirty-eight".