22013131201 has 4 divisors (see below), whose sum is σ = 22022020692. Its totient is φ = 22004241712.

The previous prime is 22013131193. The next prime is 22013131213. The reversal of 22013131201 is 10213131022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16860762801 + 5152368400 = 129849^2 + 71780^2 .

It is a cyclic number.

It is not a de Polignac number, because 22013131201 - 2³ = 22013131193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22013131271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4441030 + ... + 4445983.

It is an arithmetic number, because the mean of its divisors is an integer number (5505505173).

Almost surely, 2^22013131201 is an apocalyptic number.

It is an amenable number.

22013131201 is a deficient number, since it is larger than the sum of its proper divisors (8889491).

22013131201 is an equidigital number, since it uses as much as digits as its factorization.

22013131201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8889490.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22013131201 its reverse (10213131022), we get a palindrome (32226262223).

The spelling of 22013131201 in words is "twenty-two billion, thirteen million, one hundred thirty-one thousand, two hundred one".