22121320130413 has 16 divisors (see below), whose sum is σ = 25410314096640. Its totient is φ = 18864531092736.

The previous prime is 22121320130401. The next prime is 22121320130477. The reversal of 22121320130413 is 31403102312122.

It is not a de Polignac number, because 22121320130413 - 2¹⁷ = 22121319999341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121320130713) 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, 96814420 + ... + 97042642.

It is an arithmetic number, because the mean of its divisors is an integer number (1588144631040).

Almost surely, 2^{22121320130413} is an apocalyptic number.

It is an amenable number.

22121320130413 is a deficient number, since it is larger than the sum of its proper divisors (3288993966227).

22121320130413 is a wasteful number, since it uses less digits than its factorization.

22121320130413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298716.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 22121320130413 its reverse (31403102312122), we get a palindrome (53524422442535).

The spelling of 22121320130413 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred twenty million, one hundred thirty thousand, four hundred thirteen".