23213022222 has 32 divisors (see below), whose sum is σ = 50003509248. Its totient is φ = 7141578336.

The previous prime is 23213022199. The next prime is 23213022227. The reversal of 23213022222 is 22222031232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213022227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903283 + ... + 928625.

It is an arithmetic number, because the mean of its divisors is an integer number (1562609664).

Almost surely, 2^23213022222 is an apocalyptic number.

23213022222 is an abundant number, since it is smaller than the sum of its proper divisors (26790487026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23213022222 is a wasteful number, since it uses less digits than its factorization.

23213022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37104.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 23213022222 its reverse (22222031232), we get a palindrome (45435053454).

The spelling of 23213022222 in words is "twenty-three billion, two hundred thirteen million, twenty-two thousand, two hundred twenty-two".