1212002116 has 12 divisors (see below), whose sum is σ = 2284157932. Its totient is φ = 559385568.

The previous prime is 1212002111. The next prime is 1212002117. The reversal of 1212002116 is 6112002121.

It can be written as a sum of positive squares in 2 ways, for example, as 232562500 + 979439616 = 15250^2 + 31296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1212002116.

It is not an unprimeable number, because it can be changed into a prime (1212002111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11653815 + ... + 11653918.

Almost surely, 2^1212002116 is an apocalyptic number.

It is an amenable number.

1212002116 is a deficient number, since it is larger than the sum of its proper divisors (1072155816).

1212002116 is a wasteful number, since it uses less digits than its factorization.

1212002116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23307750 (or 23307748 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1212002116 is about 34813.8207613011. The cubic root of 1212002116 is about 1066.1896427349.

Adding to 1212002116 its reverse (6112002121), we get a palindrome (7324004237).

The spelling of 1212002116 in words is "one billion, two hundred twelve million, two thousand, one hundred sixteen".