22521112401 has 8 divisors (see below), whose sum is σ = 30159278080. Its totient is φ = 14948510832.

The previous prime is 22521112399. The next prime is 22521112421. The reversal of 22521112401 is 10421112522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22521112401 - 2¹ = 22521112399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22521112421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16390225 + ... + 16391598.

It is an arithmetic number, because the mean of its divisors is an integer number (3769909760).

Almost surely, 2^22521112401 is an apocalyptic number.

It is an amenable number.

22521112401 is a deficient number, since it is larger than the sum of its proper divisors (7638165679).

22521112401 is a wasteful number, since it uses less digits than its factorization.

22521112401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32782055.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 22521112401 its reverse (10421112522), we get a palindrome (32942224923).

The spelling of 22521112401 in words is "twenty-two billion, five hundred twenty-one million, one hundred twelve thousand, four hundred one".