1321001332212 has 12 divisors (see below), whose sum is σ = 3082336441856. Its totient is φ = 440333777400.

The previous prime is 1321001332207. The next prime is 1321001332297. The reversal of 1321001332212 is 2122331001231.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55041722164 + ... + 55041722187.

Almost surely, 2^{1321001332212} is an apocalyptic number.

1321001332212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1321001332212 is an abundant number, since it is smaller than the sum of its proper divisors (1761335109644).

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

1321001332212 is a wasteful number, since it uses less digits than its factorization.

1321001332212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110083444358 (or 110083444356 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1321001332212 its reverse (2122331001231), we get a palindrome (3443332333443).

The spelling of 1321001332212 in words is "one trillion, three hundred twenty-one billion, one million, three hundred thirty-two thousand, two hundred twelve".