22023201213 has 20 divisors (see below), whose sum is σ = 35429539068. Its totient is φ = 13552738560.

The previous prime is 22023201149. The next prime is 22023201227. The reversal of 22023201213 is 31210232022.

22023201213 is a `hidden beast` number, since 220 + 2 + 320 + 121 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10010602809 + 12012598404 = 100053^2 + 109602^2 .

It is not a de Polignac number, because 22023201213 - 2⁶ = 22023201149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22023201113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10456308 + ... + 10458413.

Almost surely, 2^22023201213 is an apocalyptic number.

It is an amenable number.

22023201213 is a deficient number, since it is larger than the sum of its proper divisors (13406337855).

22023201213 is a wasteful number, since it uses less digits than its factorization.

22023201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20914746 (or 20914737 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22023201213 its reverse (31210232022), we get a palindrome (53233433235).

The spelling of 22023201213 in words is "twenty-two billion, twenty-three million, two hundred one thousand, two hundred thirteen".