22522751901 has 24 divisors (see below), whose sum is σ = 35609753816. Its totient is φ = 13632935040.

The previous prime is 22522751857. The next prime is 22522751929. The reversal of 22522751901 is 10915722522.

It can be written as a sum of positive squares in 4 ways, for example, as 1903227876 + 20619524025 = 43626^2 + 143595^2 .

It is not a de Polignac number, because 22522751901 - 2¹⁷ = 22522620829 is a prime.

It is a super-2 number, since 2×22522751901² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22522751201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1570750 + ... + 1585023.

Almost surely, 2^22522751901 is an apocalyptic number.

It is an amenable number.

22522751901 is a deficient number, since it is larger than the sum of its proper divisors (13087001915).

22522751901 is a wasteful number, since it uses less digits than its factorization.

22522751901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155853 (or 3155850 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 22522751901 in words is "twenty-two billion, five hundred twenty-two million, seven hundred fifty-one thousand, nine hundred one".