1312230022209 has 24 divisors (see below), whose sum is σ = 2014574477760. Its totient is φ = 820730467872.

The previous prime is 1312230022193. The next prime is 1312230022261. The reversal of 1312230022209 is 9022200322131.

1312230022209 is a `hidden beast` number, since 1 + 312 + 2 + 300 + 22 + 20 + 9 = 666.

It is not a de Polignac number, because 1312230022209 - 2⁴ = 1312230022193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312230022109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37234134 + ... + 37269359.

It is an arithmetic number, because the mean of its divisors is an integer number (83940603240).

Almost surely, 2^{1312230022209} is an apocalyptic number.

1312230022209 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1312230022209 is a deficient number, since it is larger than the sum of its proper divisors (702344455551).

1312230022209 is a wasteful number, since it uses less digits than its factorization.

1312230022209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74503621 (or 74503618 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 1312230022209 in words is "one trillion, three hundred twelve billion, two hundred thirty million, twenty-two thousand, two hundred nine".