1312120122210 has 96 divisors (see below), whose sum is σ = 3495122991360. Its totient is φ = 341325216000.

The previous prime is 1312120122191. The next prime is 1312120122211. The reversal of 1312120122210 is 122210212131.

1312120122210 is a `hidden beast` number, since 1 + 312 + 1 + 20 + 122 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1312120122211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45929911 + ... + 45958469.

It is an arithmetic number, because the mean of its divisors is an integer number (36407531160).

Almost surely, 2^{1312120122210} is an apocalyptic number.

1312120122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312120122210 is an abundant number, since it is smaller than the sum of its proper divisors (2183002869150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312120122210 is a wasteful number, since it uses less digits than its factorization.

1312120122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41064 (or 41061 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1312120122210 its reverse (122210212131), we get a palindrome (1434330334341).

The spelling of 1312120122210 in words is "one trillion, three hundred twelve billion, one hundred twenty million, one hundred twenty-two thousand, two hundred ten".