22128706971 has 12 divisors (see below), whose sum is σ = 36529929072. Its totient is φ = 12644975376.

The previous prime is 22128706961. The next prime is 22128706979. The reversal of 22128706971 is 17960782122.

It is a happy number.

It is not a de Polignac number, because 22128706971 - 2¹⁰ = 22128705947 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22128706979) 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 11 ways as a sum of consecutive naturals, for example, 175624596 + ... + 175624721.

It is an arithmetic number, because the mean of its divisors is an integer number (3044160756).

Almost surely, 2^22128706971 is an apocalyptic number.

22128706971 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22128706971 is a deficient number, since it is larger than the sum of its proper divisors (14401222101).

22128706971 is a wasteful number, since it uses less digits than its factorization.

22128706971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351249330 (or 351249327 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 22128706971 in words is "twenty-two billion, one hundred twenty-eight million, seven hundred six thousand, nine hundred seventy-one".