1001220013312 has 36 divisors (see below), whose sum is σ = 1998829889280. Its totient is φ = 500534640128.

The previous prime is 1001220013253. The next prime is 1001220013327. The reversal of 1001220013312 is 2133100221001.

1001220013312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 1429023 + ... + 2011105.

It is an arithmetic number, because the mean of its divisors is an integer number (55523052480).

Almost surely, 2^{1001220013312} is an apocalyptic number.

It is an amenable number.

1001220013312 is a deficient number, since it is larger than the sum of its proper divisors (997609875968).

1001220013312 is an frugal number, since it uses more digits than its factorization.

1001220013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588818 (or 588804 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1001220013312 its reverse (2133100221001), we get a palindrome (3134320234313).

The spelling of 1001220013312 in words is "one trillion, one billion, two hundred twenty million, thirteen thousand, three hundred twelve".