23213222212 has 6 divisors (see below), whose sum is σ = 40623138878. Its totient is φ = 11606611104.

The previous prime is 23213222143. The next prime is 23213222233. The reversal of 23213222212 is 21222231232.

It can be written as a sum of positive squares in only one way, i.e., 19626889216 + 3586332996 = 140096^2 + 59886^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2901652773 + ... + 2901652780.

Almost surely, 2^23213222212 is an apocalyptic number.

It is an amenable number.

23213222212 is a deficient number, since it is larger than the sum of its proper divisors (17409916666).

23213222212 is a wasteful number, since it uses less digits than its factorization.

23213222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5803305557 (or 5803305555 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

Adding to 23213222212 its reverse (21222231232), we get a palindrome (44435453444).

The spelling of 23213222212 in words is "twenty-three billion, two hundred thirteen million, two hundred twenty-two thousand, two hundred twelve".