22312022213 has 4 divisors (see below), whose sum is σ = 24028331628. Its totient is φ = 20595712800.

The previous prime is 22312022189. The next prime is 22312022237. The reversal of 22312022213 is 31222021322.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (22312022189) and next prime (22312022237).

It can be written as a sum of positive squares in 2 ways, for example, as 7208349604 + 15103672609 = 84902^2 + 122897^2 .

It is not a de Polignac number, because 22312022213 - 2⁸ = 22312021957 is a prime.

It is a super-3 number, since 3×22312022213³ (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 (22312072213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 858154688 + ... + 858154713.

It is an arithmetic number, because the mean of its divisors is an integer number (6007082907).

Almost surely, 2^22312022213 is an apocalyptic number.

It is an amenable number.

22312022213 is a deficient number, since it is larger than the sum of its proper divisors (1716309415).

22312022213 is a wasteful number, since it uses less digits than its factorization.

22312022213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716309414.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22312022213 its reverse (31222021322), we get a palindrome (53534043535).

The spelling of 22312022213 in words is "twenty-two billion, three hundred twelve million, twenty-two thousand, two hundred thirteen".