22320032213 has 4 divisors (see below), whose sum is σ = 22353197868. Its totient is φ = 22286866560.

The previous prime is 22320032197. The next prime is 22320032237. The reversal of 22320032213 is 31223002322.

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 15740713444 + 6579318769 = 125462^2 + 81113^2 .

It is a cyclic number.

It is not a de Polignac number, because 22320032213 - 2⁴ = 22320032197 is a prime.

It is a super-3 number, since 3×22320032213³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22320032243) 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, 16581818 + ... + 16583163.

It is an arithmetic number, because the mean of its divisors is an integer number (5588299467).

Almost surely, 2^22320032213 is an apocalyptic number.

It is an amenable number.

22320032213 is a deficient number, since it is larger than the sum of its proper divisors (33165655).

22320032213 is an equidigital number, since it uses as much as digits as its factorization.

22320032213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33165654.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 22320032213 its reverse (31223002322), we get a palindrome (53543034535).

The spelling of 22320032213 in words is "twenty-two billion, three hundred twenty million, thirty-two thousand, two hundred thirteen".