1211253646712 has 16 divisors (see below), whose sum is σ = 2349414401400. Its totient is φ = 584743139680.

The previous prime is 1211253646657. The next prime is 1211253646753. The reversal of 1211253646712 is 2176463521121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211253646712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2610460214 + ... + 2610460677.

Almost surely, 2^{1211253646712} is an apocalyptic number.

It is an amenable number.

1211253646712 is a deficient number, since it is larger than the sum of its proper divisors (1138160754688).

1211253646712 is a wasteful number, since it uses less digits than its factorization.

1211253646712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5220920926 (or 5220920922 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The spelling of 1211253646712 in words is "one trillion, two hundred eleven billion, two hundred fifty-three million, six hundred forty-six thousand, seven hundred twelve".