2001111012012 has 24 divisors (see below), whose sum is σ = 5336296032256. Its totient is φ = 571746003408.

The previous prime is 2001111011929. The next prime is 2001111012037. The reversal of 2001111012012 is 2102101111002.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 11911374988 + ... + 11911375155.

Almost surely, 2^{2001111012012} is an apocalyptic number.

It is an amenable number.

2001111012012 is an abundant number, since it is smaller than the sum of its proper divisors (3335185020244).

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

2001111012012 is a wasteful number, since it uses less digits than its factorization.

2001111012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23822750157 (or 23822750155 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2001111012012 its reverse (2102101111002), we get a palindrome (4103212123014).

The spelling of 2001111012012 in words is "two trillion, one billion, one hundred eleven million, twelve thousand, twelve".