2001211012200 has 96 divisors (see below), whose sum is σ = 6204520296000. Its totient is φ = 533590364160.

The previous prime is 2001211012153. The next prime is 2001211012237. The reversal of 2001211012200 is 22101121002.

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 23 ways as a sum of consecutive naturals, for example, 4755976 + ... + 5159624.

It is an arithmetic number, because the mean of its divisors is an integer number (64630419750).

Almost surely, 2^{2001211012200} is an apocalyptic number.

2001211012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001211012200 is an abundant number, since it is smaller than the sum of its proper divisors (4203309283800).

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

2001211012200 is a wasteful number, since it uses less digits than its factorization.

2001211012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411931 (or 411922 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2001211012200 its reverse (22101121002), we get a palindrome (2023312133202).

The spelling of 2001211012200 in words is "two trillion, one billion, two hundred eleven million, twelve thousand, two hundred".