2001112201312 has 48 divisors (see below), whose sum is σ = 4526075860992. Its totient is φ = 853129342080.

The previous prime is 2001112201289. The next prime is 2001112201381. The reversal of 2001112201312 is 2131022111002.

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 7 ways as a sum of consecutive naturals, for example, 23343438 + ... + 23429005.

It is an arithmetic number, because the mean of its divisors is an integer number (94293247104).

Almost surely, 2^{2001112201312} is an apocalyptic number.

It is an amenable number.

2001112201312 is an abundant number, since it is smaller than the sum of its proper divisors (2524963659680).

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

2001112201312 is a wasteful number, since it uses less digits than its factorization.

2001112201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46772651 (or 46772643 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2001112201312 its reverse (2131022111002), we get a palindrome (4132134312314).

The spelling of 2001112201312 in words is "two trillion, one billion, one hundred twelve million, two hundred one thousand, three hundred twelve".