22031631436 has 24 divisors (see below), whose sum is σ = 38851515360. Its totient is φ = 10931260032.

The previous prime is 22031631421. The next prime is 22031631449. The reversal of 22031631436 is 63413613022.

It is a junction number, because it is equal to n+sod(n) for n = 22031631398 and 22031631407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1851241 + ... + 1863103.

It is an arithmetic number, because the mean of its divisors is an integer number (1618813140).

Almost surely, 2^22031631436 is an apocalyptic number.

It is an amenable number.

22031631436 is a deficient number, since it is larger than the sum of its proper divisors (16819883924).

22031631436 is a wasteful number, since it uses less digits than its factorization.

22031631436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15393 (or 15391 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 22031631436 in words is "twenty-two billion, thirty-one million, six hundred thirty-one thousand, four hundred thirty-six".