22231006256 has 20 divisors (see below), whose sum is σ = 43115125872. Its totient is φ = 11104522176.

The previous prime is 22231006241. The next prime is 22231006271. The reversal of 22231006256 is 65260013222.

It is an interprime number because it is at equal distance from previous prime (22231006241) and next prime (22231006271).

It is a super-2 number, since 2×22231006256² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669596 + ... + 702011.

Almost surely, 2^22231006256 is an apocalyptic number.

It is an amenable number.

22231006256 is a deficient number, since it is larger than the sum of its proper divisors (20884119616).

22231006256 is a wasteful number, since it uses less digits than its factorization.

22231006256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372628 (or 1372622 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 22231006256 its reverse (65260013222), we get a palindrome (87491019478).

The spelling of 22231006256 in words is "twenty-two billion, two hundred thirty-one million, six thousand, two hundred fifty-six".