22521043222001 has 16 divisors (see below), whose sum is σ = 24375573098496. Its totient is φ = 20726205674496.

The previous prime is 22521043221977. The next prime is 22521043222039. The reversal of 22521043222001 is 10022234012522.

It is a de Polignac number, because none of the positive numbers 2^k-22521043222001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22521043222501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12096776 + ... + 13833801.

It is an arithmetic number, because the mean of its divisors is an integer number (1523473318656).

Almost surely, 2^{22521043222001} is an apocalyptic number.

It is an amenable number.

22521043222001 is a deficient number, since it is larger than the sum of its proper divisors (1854529876495).

22521043222001 is a wasteful number, since it uses less digits than its factorization.

22521043222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25931728.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 22521043222001 its reverse (10022234012522), we get a palindrome (32543277234523).

The spelling of 22521043222001 in words is "twenty-two trillion, five hundred twenty-one billion, forty-three million, two hundred twenty-two thousand, one".