22121515135201 has 8 divisors (see below), whose sum is σ = 22133350164800. Its totient is φ = 22109681028240.

The previous prime is 22121515135091. The next prime is 22121515135241. The reversal of 22121515135201 is 10253151512122.

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

It is a cyclic number.

It is not a de Polignac number, because 22121515135201 - 2²³ = 22121506746593 is a prime.

It is a super-2 number, since 2×22121515135201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121515135241) 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, 50733130 + ... + 51167308.

It is an arithmetic number, because the mean of its divisors is an integer number (2766668770600).

Almost surely, 2^{22121515135201} is an apocalyptic number.

It is an amenable number.

22121515135201 is a deficient number, since it is larger than the sum of its proper divisors (11835029599).

22121515135201 is a wasteful number, since it uses less digits than its factorization.

22121515135201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461319.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 22121515135201 its reverse (10253151512122), we get a palindrome (32374666647323).

The spelling of 22121515135201 in words is "twenty-two trillion, one hundred twenty-one billion, five hundred fifteen million, one hundred thirty-five thousand, two hundred one".