1312210021132 has 48 divisors (see below), whose sum is σ = 2375809615872. Its totient is φ = 633799108800.

The previous prime is 1312210021081. The next prime is 1312210021181. The reversal of 1312210021132 is 2311200122131.

It is a super-2 number, since 2×1312210021132² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29564757 + ... + 29609107.

It is an arithmetic number, because the mean of its divisors is an integer number (49496033664).

Almost surely, 2^{1312210021132} is an apocalyptic number.

It is an amenable number.

1312210021132 is a deficient number, since it is larger than the sum of its proper divisors (1063599594740).

1312210021132 is a wasteful number, since it uses less digits than its factorization.

1312210021132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46558 (or 46556 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1312210021132 its reverse (2311200122131), we get a palindrome (3623410143263).

The spelling of 1312210021132 in words is "one trillion, three hundred twelve billion, two hundred ten million, twenty-one thousand, one hundred thirty-two".