1212311536634 has 32 divisors (see below), whose sum is σ = 2022130013184. Its totient is φ = 540408057280.

The previous prime is 1212311536573. The next prime is 1212311536643. The reversal of 1212311536634 is 4366351132121.

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 15 ways as a sum of consecutive naturals, for example, 2345447 + ... + 2815269.

It is an arithmetic number, because the mean of its divisors is an integer number (63191562912).

Almost surely, 2^{1212311536634} is an apocalyptic number.

1212311536634 is a deficient number, since it is larger than the sum of its proper divisors (809818476550).

1212311536634 is a wasteful number, since it uses less digits than its factorization.

1212311536634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472102.

The product of its digits is 77760, while the sum is 38.

Adding to 1212311536634 its reverse (4366351132121), we get a palindrome (5578662668755).

The spelling of 1212311536634 in words is "one trillion, two hundred twelve billion, three hundred eleven million, five hundred thirty-six thousand, six hundred thirty-four".