13231232212 has 24 divisors (see below), whose sum is σ = 25275835872. Its totient is φ = 6010336800.

The previous prime is 13231232191. The next prime is 13231232269. The reversal of 13231232212 is 21223213231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26583 + ... + 164830.

It is an arithmetic number, because the mean of its divisors is an integer number (1053159828).

Almost surely, 2^13231232212 is an apocalyptic number.

It is an amenable number.

13231232212 is a deficient number, since it is larger than the sum of its proper divisors (12044603660).

13231232212 is a wasteful number, since it uses less digits than its factorization.

13231232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192999 (or 192997 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 13231232212 its reverse (21223213231), we get a palindrome (34454445443).

The spelling of 13231232212 in words is "thirteen billion, two hundred thirty-one million, two hundred thirty-two thousand, two hundred twelve".