22252312464 has 20 divisors (see below), whose sum is σ = 57485140656. Its totient is φ = 7417437472.

The previous prime is 22252312409. The next prime is 22252312483. The reversal of 22252312464 is 46421325222.

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, 231794874 + ... + 231794969.

Almost surely, 2^22252312464 is an apocalyptic number.

22252312464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22252312464 is an abundant number, since it is smaller than the sum of its proper divisors (35232828192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22252312464 is a wasteful number, since it uses less digits than its factorization.

22252312464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463589854 (or 463589848 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

Adding to 22252312464 its reverse (46421325222), we get a palindrome (68673637686).

The spelling of 22252312464 in words is "twenty-two billion, two hundred fifty-two million, three hundred twelve thousand, four hundred sixty-four".