22113434310521 has 16 divisors (see below), whose sum is σ = 22507479485568. Its totient is φ = 21723334617600.

The previous prime is 22113434310511. The next prime is 22113434310523. The reversal of 22113434310521 is 12501343431122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22113434310521 - 2³⁸ = 21838556403577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22113434310523) 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, 6185876 + ... + 9082506.

It is an arithmetic number, because the mean of its divisors is an integer number (1406717467848).

Almost surely, 2^{22113434310521} is an apocalyptic number.

It is an amenable number.

22113434310521 is a deficient number, since it is larger than the sum of its proper divisors (394045175047).

22113434310521 is a wasteful number, since it uses less digits than its factorization.

22113434310521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897312.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 22113434310521 its reverse (12501343431122), we get a palindrome (34614777741643).

The spelling of 22113434310521 in words is "twenty-two trillion, one hundred thirteen billion, four hundred thirty-four million, three hundred ten thousand, five hundred twenty-one".