22721948980 has 24 divisors (see below), whose sum is σ = 48008836512. Its totient is φ = 9033018912.

The previous prime is 22721948971. The next prime is 22721948993. The reversal of 22721948980 is 8984912722.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3481702 + ... + 3488221.

It is an arithmetic number, because the mean of its divisors is an integer number (2000368188).

Almost surely, 2^22721948980 is an apocalyptic number.

22721948980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22721948980 is an abundant number, since it is smaller than the sum of its proper divisors (25286887532).

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

22721948980 is a wasteful number, since it uses less digits than its factorization.

22721948980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970095 (or 6970093 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 22721948980 in words is "twenty-two billion, seven hundred twenty-one million, nine hundred forty-eight thousand, nine hundred eighty".