22112200521 has 24 divisors (see below), whose sum is σ = 33028958976. Its totient is φ = 14240495520.

The previous prime is 22112200519. The next prime is 22112200571. The reversal of 22112200521 is 12500221122.

22112200521 is a `hidden beast` number, since 2 + 21 + 122 + 0 + 0 + 521 = 666.

It is not a de Polignac number, because 22112200521 - 2¹ = 22112200519 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22112200494 and 22112200503.

It is not an unprimeable number, because it can be changed into a prime (22112200571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86691 + ... + 227463.

It is an arithmetic number, because the mean of its divisors is an integer number (1376206624).

Almost surely, 2^22112200521 is an apocalyptic number.

It is an amenable number.

22112200521 is a deficient number, since it is larger than the sum of its proper divisors (10916758455).

22112200521 is a wasteful number, since it uses less digits than its factorization.

22112200521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141373 (or 141370 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 22112200521 its reverse (12500221122), we get a palindrome (34612421643).

The spelling of 22112200521 in words is "twenty-two billion, one hundred twelve million, two hundred thousand, five hundred twenty-one".