22721058492 has 48 divisors (see below), whose sum is σ = 58698659712. Its totient is φ = 6782402880.

The previous prime is 22721058469. The next prime is 22721058497. The reversal of 22721058492 is 29485012722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22721058497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275703 + ... + 1293390.

It is an arithmetic number, because the mean of its divisors is an integer number (1222888744).

Almost surely, 2^22721058492 is an apocalyptic number.

22721058492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22721058492 is an abundant number, since it is smaller than the sum of its proper divisors (35977601220).

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

22721058492 is a wasteful number, since it uses less digits than its factorization.

22721058492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569178 (or 2569176 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 22721058492 in words is "twenty-two billion, seven hundred twenty-one million, fifty-eight thousand, four hundred ninety-two".