12010211121985 has 64 divisors (see below), whose sum is σ = 15315269840640. Its totient is φ = 9030322667520.

The previous prime is 12010211121983. The next prime is 12010211122031. The reversal of 12010211121985 is 58912111201021.

It is a happy number.

It is not a de Polignac number, because 12010211121985 - 2¹ = 12010211121983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12010211121985.

It is not an unprimeable number, because it can be changed into a prime (12010211121983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 250507146 + ... + 250555084.

It is an arithmetic number, because the mean of its divisors is an integer number (239301091260).

Almost surely, 2^{12010211121985} is an apocalyptic number.

It is an amenable number.

12010211121985 is a deficient number, since it is larger than the sum of its proper divisors (3305058718655).

12010211121985 is a wasteful number, since it uses less digits than its factorization.

12010211121985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48418.

The product of its (nonzero) digits is 2880, while the sum is 34.

The spelling of 12010211121985 in words is "twelve trillion, ten billion, two hundred eleven million, one hundred twenty-one thousand, nine hundred eighty-five".