22121000404113 has 16 divisors (see below), whose sum is σ = 33631928217216. Its totient is φ = 12812163129600.

The previous prime is 22121000404091. The next prime is 22121000404117. The reversal of 22121000404113 is 31140400012122.

It is not a de Polignac number, because 22121000404113 - 2²⁰ = 22120999355537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22121000404113.

It is not an unprimeable number, because it can be changed into a prime (22121000404117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16682503413 + ... + 16682504738.

It is an arithmetic number, because the mean of its divisors is an integer number (2101995513576).

Almost surely, 2^{22121000404113} is an apocalyptic number.

It is an amenable number.

22121000404113 is a deficient number, since it is larger than the sum of its proper divisors (11510927813103).

22121000404113 is a wasteful number, since it uses less digits than its factorization.

22121000404113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33365008184.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 22121000404113 its reverse (31140400012122), we get a palindrome (53261400416235).

The spelling of 22121000404113 in words is "twenty-two trillion, one hundred twenty-one billion, four hundred four thousand, one hundred thirteen".