1312136221066 has 32 divisors (see below), whose sum is σ = 2204935188480. Its totient is φ = 580581783600.

The previous prime is 1312136221051. The next prime is 1312136221079. The reversal of 1312136221066 is 6601226312131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5193286 + ... + 5440081.

It is an arithmetic number, because the mean of its divisors is an integer number (68904224640).

Almost surely, 2^{1312136221066} is an apocalyptic number.

1312136221066 is a deficient number, since it is larger than the sum of its proper divisors (892798967414).

1312136221066 is a wasteful number, since it uses less digits than its factorization.

1312136221066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10633530.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 1312136221066 in words is "one trillion, three hundred twelve billion, one hundred thirty-six million, two hundred twenty-one thousand, sixty-six".