22521514412 has 6 divisors (see below), whose sum is σ = 39412650228. Its totient is φ = 11260757204.

The previous prime is 22521514369. The next prime is 22521514427. The reversal of 22521514412 is 21441512522.

It is a super-2 number, since 2×22521514412² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815189298 + ... + 2815189305.

It is an arithmetic number, because the mean of its divisors is an integer number (6568775038).

Almost surely, 2^22521514412 is an apocalyptic number.

It is an amenable number.

22521514412 is a deficient number, since it is larger than the sum of its proper divisors (16891135816).

22521514412 is a wasteful number, since it uses less digits than its factorization.

22521514412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5630378607 (or 5630378605 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The spelling of 22521514412 in words is "twenty-two billion, five hundred twenty-one million, five hundred fourteen thousand, four hundred twelve".