312212101002109 has 32 divisors (see below), whose sum is σ = 397208849006592. Its totient is φ = 238340561400000.

The previous prime is 312212101002089. The next prime is 312212101002163. The reversal of 312212101002109 is 901200101212213.

It is a cyclic number.

It is not a de Polignac number, because 312212101002109 - 2⁷ = 312212101001981 is a prime.

It is a super-2 number, since 2×312212101002109² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312212101002509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131232477 + ... + 133590370.

It is an arithmetic number, because the mean of its divisors is an integer number (12412776531456).

Almost surely, 2^{312212101002109} is an apocalyptic number.

It is an amenable number.

312212101002109 is a deficient number, since it is larger than the sum of its proper divisors (84996748004483).

312212101002109 is a wasteful number, since it uses less digits than its factorization.

312212101002109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264823177.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 312212101002109 in words is "three hundred twelve trillion, two hundred twelve billion, one hundred one million, two thousand, one hundred nine".