22381125988 has 24 divisors (see below), whose sum is σ = 42975665208. Its totient is φ = 10134848256.

The previous prime is 22381125973. The next prime is 22381125997. The reversal of 22381125988 is 88952118322.

It can be written as a sum of positive squares in 4 ways, for example, as 2946535524 + 19434590464 = 54282^2 + 139408^2 .

It is a super-3 number, since 3×22381125988³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 4057681 + ... + 4063192.

It is an arithmetic number, because the mean of its divisors is an integer number (1790652717).

Almost surely, 2^22381125988 is an apocalyptic number.

It is an amenable number.

22381125988 is a deficient number, since it is larger than the sum of its proper divisors (20594539220).

22381125988 is a wasteful number, since it uses less digits than its factorization.

22381125988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8120943 (or 8120941 counting only the distinct ones).

The product of its digits is 552960, while the sum is 49.

The spelling of 22381125988 in words is "twenty-two billion, three hundred eighty-one million, one hundred twenty-five thousand, nine hundred eighty-eight".