22001100013 has 4 divisors (see below), whose sum is σ = 22004011260. Its totient is φ = 21998188768.

The previous prime is 22001099987. The next prime is 22001100029. The reversal of 22001100013 is 31000110022.

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 174583369 + 21826516644 = 13213^2 + 147738^2 .

It is a cyclic number.

It is not a de Polignac number, because 22001100013 - 2²⁵ = 21967545581 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 (22001103013) 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, 1444258 + ... + 1459411.

It is an arithmetic number, because the mean of its divisors is an integer number (5501002815).

Almost surely, 2^22001100013 is an apocalyptic number.

It is an amenable number.

22001100013 is a deficient number, since it is larger than the sum of its proper divisors (2911247).

22001100013 is an equidigital number, since it uses as much as digits as its factorization.

22001100013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911246.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 22001100013 its reverse (31000110022), we get a palindrome (53001210035).

The spelling of 22001100013 in words is "twenty-two billion, one million, one hundred thousand, thirteen".