22125571512 has 64 divisors (see below), whose sum is σ = 60373123200. Its totient is φ = 6701312640.

The previous prime is 22125571493. The next prime is 22125571541. The reversal of 22125571512 is 21517552122.

It is a super-2 number, since 2×22125571512² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525963 + ... + 566469.

It is an arithmetic number, because the mean of its divisors is an integer number (943330050).

Almost surely, 2^22125571512 is an apocalyptic number.

22125571512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22125571512 is an abundant number, since it is smaller than the sum of its proper divisors (38247551688).

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

22125571512 is a wasteful number, since it uses less digits than its factorization.

22125571512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42596 (or 42592 counting only the distinct ones).

The product of its digits is 14000, while the sum is 33.

The spelling of 22125571512 in words is "twenty-two billion, one hundred twenty-five million, five hundred seventy-one thousand, five hundred twelve".