13312200021 has 16 divisors (see below), whose sum is σ = 18168843264. Its totient is φ = 8665325424.

The previous prime is 13312199963. The next prime is 13312200029. The reversal of 13312200021 is 12000221331.

It is not a de Polignac number, because 13312200021 - 2¹⁴ = 13312183637 is a prime.

It is a super-2 number, since 2×13312200021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312200029) 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, 378820 + ... + 412466.

It is an arithmetic number, because the mean of its divisors is an integer number (1135552704).

Almost surely, 2^13312200021 is an apocalyptic number.

It is an amenable number.

13312200021 is a deficient number, since it is larger than the sum of its proper divisors (4856643243).

13312200021 is a wasteful number, since it uses less digits than its factorization.

13312200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36760.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13312200021 its reverse (12000221331), we get a palindrome (25312421352).

The spelling of 13312200021 in words is "thirteen billion, three hundred twelve million, two hundred thousand, twenty-one".