22102313213 has 4 divisors (see below), whose sum is σ = 22102670748. Its totient is φ = 22101955680.

The previous prime is 22102313209. The next prime is 22102313221. The reversal of 22102313213 is 31231320122.

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 17643011929 + 4459301284 = 132827^2 + 66778^2 .

It is a cyclic number.

It is not a de Polignac number, because 22102313213 - 2² = 22102313209 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 (22102313263) 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, 59528 + ... + 218513.

It is an arithmetic number, because the mean of its divisors is an integer number (5525667687).

Almost surely, 2^22102313213 is an apocalyptic number.

It is an amenable number.

22102313213 is a deficient number, since it is larger than the sum of its proper divisors (357535).

22102313213 is an equidigital number, since it uses as much as digits as its factorization.

22102313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357534.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22102313213 its reverse (31231320122), we get a palindrome (53333633335).

The spelling of 22102313213 in words is "twenty-two billion, one hundred two million, three hundred thirteen thousand, two hundred thirteen".