1213332112 has 40 divisors (see below), whose sum is σ = 2384083520. Its totient is φ = 598147200.

The previous prime is 1213332103. The next prime is 1213332137. The reversal of 1213332112 is 2112333121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213332112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334018 + ... + 337630.

It is an arithmetic number, because the mean of its divisors is an integer number (59602088).

Almost surely, 2^1213332112 is an apocalyptic number.

It is an amenable number.

1213332112 is a deficient number, since it is larger than the sum of its proper divisors (1170751408).

1213332112 is a wasteful number, since it uses less digits than its factorization.

1213332112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911 (or 3905 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1213332112 is about 34832.9170756628. The cubic root of 1213332112 is about 1066.5794961750.

Adding to 1213332112 its reverse (2112333121), we get a palindrome (3325665233).

The spelling of 1213332112 in words is "one billion, two hundred thirteen million, three hundred thirty-two thousand, one hundred twelve".