22101921312 has 48 divisors (see below), whose sum is σ = 58531001760. Its totient is φ = 7302106112.

The previous prime is 22101921307. The next prime is 22101921329. The reversal of 22101921312 is 21312910122.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007862 + ... + 1029557.

It is an arithmetic number, because the mean of its divisors is an integer number (1219395870).

Almost surely, 2^22101921312 is an apocalyptic number.

It is an amenable number.

22101921312 is an abundant number, since it is smaller than the sum of its proper divisors (36429080448).

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

22101921312 is a wasteful number, since it uses less digits than its factorization.

22101921312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037545 (or 2037537 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 22101921312 in words is "twenty-two billion, one hundred one million, nine hundred twenty-one thousand, three hundred twelve".