1012331221013 has 12 divisors (see below), whose sum is σ = 1179441254880. Its totient is φ = 866362973112.

The previous prime is 1012331220997. The next prime is 1012331221021. The reversal of 1012331221013 is 3101221332101.

It is a happy number.

It is not a de Polignac number, because 1012331221013 - 2⁴ = 1012331220997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012331221073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16033673 + ... + 16096686.

It is an arithmetic number, because the mean of its divisors is an integer number (98286771240).

Almost surely, 2^{1012331221013} is an apocalyptic number.

It is an amenable number.

1012331221013 is a deficient number, since it is larger than the sum of its proper divisors (167110033867).

1012331221013 is an equidigital number, since it uses as much as digits as its factorization.

1012331221013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32131016 (or 32131009 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1012331221013 its reverse (3101221332101), we get a palindrome (4113552553114).

The spelling of 1012331221013 in words is "one trillion, twelve billion, three hundred thirty-one million, two hundred twenty-one thousand, thirteen".