22212240013 has 4 divisors (see below), whose sum is σ = 22248241020. Its totient is φ = 22176239008.

The previous prime is 22212239983. The next prime is 22212240031. The reversal of 22212240013 is 31004221222.

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 2437693129 + 19774546884 = 49373^2 + 140622^2 .

It is a cyclic number.

It is not a de Polignac number, because 22212240013 - 2⁹ = 22212239501 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 (22212249013) 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, 17999578 + ... + 18000811.

It is an arithmetic number, because the mean of its divisors is an integer number (5562060255).

Almost surely, 2^22212240013 is an apocalyptic number.

It is an amenable number.

22212240013 is a deficient number, since it is larger than the sum of its proper divisors (36001007).

22212240013 is an equidigital number, since it uses as much as digits as its factorization.

22212240013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36001006.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22212240013 its reverse (31004221222), we get a palindrome (53216461235).

The spelling of 22212240013 in words is "twenty-two billion, two hundred twelve million, two hundred forty thousand, thirteen".