1212119312 has 30 divisors (see below), whose sum is σ = 2487805614. Its totient is φ = 570138880.

The previous prime is 1212119309. The next prime is 1212119333. The reversal of 1212119312 is 2139112121.

It can be written as a sum of positive squares in only one way, i.e., 1140818176 + 71301136 = 33776^2 + 8444^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 573137 + ... + 575247.

Almost surely, 2^1212119312 is an apocalyptic number.

It is an amenable number.

1212119312 is an abundant number, since it is smaller than the sum of its proper divisors (1275686302).

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

1212119312 is an frugal number, since it uses more digits than its factorization.

1212119312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4247 (or 2130 counting only the distinct ones).

The product of its digits is 216, while the sum is 23.

The square root of 1212119312 is about 34815.5039027155. The cubic root of 1212119312 is about 1066.2240071233.

The spelling of 1212119312 in words is "one billion, two hundred twelve million, one hundred nineteen thousand, three hundred twelve".