22747575021 has 8 divisors (see below), whose sum is σ = 30844169760. Its totient is φ = 14908015152.

The previous prime is 22747575007. The next prime is 22747575047. The reversal of 22747575021 is 12057574722.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22747575021 - 2¹⁷ = 22747443949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22747575001) 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, 64258510 + ... + 64258863.

It is an arithmetic number, because the mean of its divisors is an integer number (3855521220).

Almost surely, 2^22747575021 is an apocalyptic number.

It is an amenable number.

22747575021 is a deficient number, since it is larger than the sum of its proper divisors (8096594739).

22747575021 is a wasteful number, since it uses less digits than its factorization.

22747575021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128517435.

The product of its (nonzero) digits is 274400, while the sum is 42.

The spelling of 22747575021 in words is "twenty-two billion, seven hundred forty-seven million, five hundred seventy-five thousand, twenty-one".