13222212232 has 8 divisors (see below), whose sum is σ = 24791647950. Its totient is φ = 6611106112.

The previous prime is 13222212209. The next prime is 13222212257. The reversal of 13222212232 is 23221222231.

It can be written as a sum of positive squares in only one way, i.e., 10500920676 + 2721291556 = 102474^2 + 52166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 826388257 + ... + 826388272.

Almost surely, 2^13222212232 is an apocalyptic number.

It is an amenable number.

13222212232 is a deficient number, since it is larger than the sum of its proper divisors (11569435718).

13222212232 is a wasteful number, since it uses less digits than its factorization.

13222212232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652776535 (or 1652776531 counting only the distinct ones).

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

Adding to 13222212232 its reverse (23221222231), we get a palindrome (36443434463).

Subtracting 13222212232 from its reverse (23221222231), we obtain a palindrome (9999009999).

The spelling of 13222212232 in words is "thirteen billion, two hundred twenty-two million, two hundred twelve thousand, two hundred thirty-two".