1212116072 has 16 divisors (see below), whose sum is σ = 2276104740. Its totient is φ = 605154816.

The previous prime is 1212116069. The next prime is 1212116137. The reversal of 1212116072 is 2706112121.

It can be written as a sum of positive squares in 2 ways, for example, as 960132196 + 251983876 = 30986^2 + 15874^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107183 + ... + 117950.

Almost surely, 2^1212116072 is an apocalyptic number.

It is an amenable number.

1212116072 is a deficient number, since it is larger than the sum of its proper divisors (1063988668).

1212116072 is a wasteful number, since it uses less digits than its factorization.

1212116072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225812 (or 225808 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 1212116072 is about 34815.4573716905. The cubic root of 1212116072 is about 1066.2230571153.

Adding to 1212116072 its reverse (2706112121), we get a palindrome (3918228193).

The spelling of 1212116072 in words is "one billion, two hundred twelve million, one hundred sixteen thousand, seventy-two".