1212346612 has 6 divisors (see below), whose sum is σ = 2121606578. Its totient is φ = 606173304.

The previous prime is 1212346609. The next prime is 1212346613. The reversal of 1212346612 is 2166432121.

It can be written as a sum of positive squares in only one way, i.e., 1211318416 + 1028196 = 34804^2 + 1014^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212346613) by changing a digit.

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 as a sum of consecutive naturals, namely, 151543323 + ... + 151543330.

Almost surely, 2^1212346612 is an apocalyptic number.

It is an amenable number.

1212346612 is a deficient number, since it is larger than the sum of its proper divisors (909259966).

1212346612 is a wasteful number, since it uses less digits than its factorization.

1212346612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303086657 (or 303086655 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1212346612 is about 34818.7680999773. The cubic root of 1212346612 is about 1066.2906500594.

Adding to 1212346612 its reverse (2166432121), we get a palindrome (3378778733).

The spelling of 1212346612 in words is "one billion, two hundred twelve million, three hundred forty-six thousand, six hundred twelve".