2001312211012 has 24 divisors (see below), whose sum is σ = 3506404325760. Its totient is φ = 999482615040.

The previous prime is 2001312210983. The next prime is 2001312211021. The reversal of 2001312211012 is 2101122131002.

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, 53220337 + ... + 53257927.

It is an arithmetic number, because the mean of its divisors is an integer number (146100180240).

Almost surely, 2^{2001312211012} is an apocalyptic number.

It is an amenable number.

2001312211012 is a deficient number, since it is larger than the sum of its proper divisors (1505092114748).

2001312211012 is a wasteful number, since it uses less digits than its factorization.

2001312211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52851 (or 52849 counting only the distinct ones).

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

Adding to 2001312211012 its reverse (2101122131002), we get a palindrome (4102434342014).

The spelling of 2001312211012 in words is "two trillion, one billion, three hundred twelve million, two hundred eleven thousand, twelve".