1312012322200 has 48 divisors (see below), whose sum is σ = 3050541360000. Its totient is φ = 524785537920.

The previous prime is 1312012322183. The next prime is 1312012322209. The reversal of 1312012322200 is 22232102131.

It is a super-2 number, since 2×1312012322200² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312012322209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6102126 + ... + 6313474.

It is an arithmetic number, because the mean of its divisors is an integer number (63552945000).

Almost surely, 2^{1312012322200} is an apocalyptic number.

1312012322200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312012322200 is an abundant number, since it is smaller than the sum of its proper divisors (1738529037800).

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

1312012322200 is a wasteful number, since it uses less digits than its factorization.

1312012322200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242404 (or 242395 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1312012322200 its reverse (22232102131), we get a palindrome (1334244424331).

The spelling of 1312012322200 in words is "one trillion, three hundred twelve billion, twelve million, three hundred twenty-two thousand, two hundred".