1312022113212 has 12 divisors (see below), whose sum is σ = 3061384930856. Its totient is φ = 437340704400.

The previous prime is 1312022113159. The next prime is 1312022113231. The reversal of 1312022113212 is 2123112202131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54667588039 + ... + 54667588062.

Almost surely, 2^{1312022113212} is an apocalyptic number.

1312022113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312022113212 is an abundant number, since it is smaller than the sum of its proper divisors (1749362817644).

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

1312022113212 is a wasteful number, since it uses less digits than its factorization.

1312022113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109335176108 (or 109335176106 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1312022113212 its reverse (2123112202131), we get a palindrome (3435134315343).

The spelling of 1312022113212 in words is "one trillion, three hundred twelve billion, twenty-two million, one hundred thirteen thousand, two hundred twelve".