2001210111200 has 72 divisors (see below), whose sum is σ = 4901163649200. Its totient is φ = 797910041600.

The previous prime is 2001210111181. The next prime is 2001210111269. The reversal of 2001210111200 is 21110121002.

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, 3772925 + ... + 4270524.

It is an arithmetic number, because the mean of its divisors is an integer number (68071717350).

Almost surely, 2^{2001210111200} is an apocalyptic number.

2001210111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001210111200 is an abundant number, since it is smaller than the sum of its proper divisors (2899953538000).

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

2001210111200 is a wasteful number, since it uses less digits than its factorization.

2001210111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8043780 (or 8043767 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2001210111200 its reverse (21110121002), we get a palindrome (2022320232202).

The spelling of 2001210111200 in words is "two trillion, one billion, two hundred ten million, one hundred eleven thousand, two hundred".