1231332212 has 24 divisors (see below), whose sum is σ = 2355998400. Its totient is φ = 558440960.

The previous prime is 1231332203. The next prime is 1231332281. The reversal of 1231332212 is 2122331321.

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, 11408 + ... + 50919.

It is an arithmetic number, because the mean of its divisors is an integer number (98166600).

Almost surely, 2^1231332212 is an apocalyptic number.

It is an amenable number.

1231332212 is a deficient number, since it is larger than the sum of its proper divisors (1124666188).

1231332212 is a wasteful number, since it uses less digits than its factorization.

1231332212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62791 (or 62789 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1231332212 is about 35090.3435719857. The cubic root of 1231332212 is about 1071.8279558406.

Adding to 1231332212 its reverse (2122331321), we get a palindrome (3353663533).

The spelling of 1231332212 in words is "one billion, two hundred thirty-one million, three hundred thirty-two thousand, two hundred twelve".