2001200011100 has 36 divisors (see below), whose sum is σ = 4343227421904. Its totient is φ = 800365092480.

The previous prime is 2001200011039. The next prime is 2001200011123. The reversal of 2001200011100 is 11100021002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 734609 + ... + 2131208.

It is an arithmetic number, because the mean of its divisors is an integer number (120645206164).

Almost surely, 2^{2001200011100} is an apocalyptic number.

2001200011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001200011100 is an abundant number, since it is smaller than the sum of its proper divisors (2342027410804).

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

2001200011100 is a wasteful number, since it uses less digits than its factorization.

2001200011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872814 (or 2872807 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2001200011100 its reverse (11100021002), we get a palindrome (2012300032102).

The spelling of 2001200011100 in words is "two trillion, one billion, two hundred million, eleven thousand, one hundred".