1212312096 has 60 divisors (see below), whose sum is σ = 3565383822. Its totient is φ = 404103168.

The previous prime is 1212312077. The next prime is 1212312097. The reversal of 1212312096 is 6902132121.

It can be written as a sum of positive squares in only one way, i.e., 827367696 + 384944400 = 28764^2 + 19620^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212312097) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 231265 + ... + 236448.

Almost surely, 2^1212312096 is an apocalyptic number.

1212312096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1212312096 is an abundant number, since it is smaller than the sum of its proper divisors (2353071726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212312096 is an equidigital number, since it uses as much as digits as its factorization.

1212312096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467735 (or 467718 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1212312096 is about 34818.2724442210. The cubic root of 1212312096 is about 1066.2805307208.

The spelling of 1212312096 in words is "one billion, two hundred twelve million, three hundred twelve thousand, ninety-six".