22248917920 has 48 divisors (see below), whose sum is σ = 55329553440. Its totient is φ = 8431167744.

The previous prime is 22248917861. The next prime is 22248917923. The reversal of 22248917920 is 2971984222.

It is a super-2 number, since 2×22248917920² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22248917923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3656322 + ... + 3662401.

It is an arithmetic number, because the mean of its divisors is an integer number (1152699030).

Almost surely, 2^22248917920 is an apocalyptic number.

22248917920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22248917920 is an abundant number, since it is smaller than the sum of its proper divisors (33080635520).

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

22248917920 is a wasteful number, since it uses less digits than its factorization.

22248917920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7318757 (or 7318749 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 22248917920 in words is "twenty-two billion, two hundred forty-eight million, nine hundred seventeen thousand, nine hundred twenty".