2001001201200 has 120 divisors (see below), whose sum is σ = 7122082091600. Its totient is φ = 533600317440.

The previous prime is 2001001201193. The next prime is 2001001201237. The reversal of 2001001201200 is 21021001002.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92628145 + ... + 92649744.

Almost surely, 2^{2001001201200} is an apocalyptic number.

2001001201200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001001201200 is an abundant number, since it is smaller than the sum of its proper divisors (5121080890400).

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

2001001201200 is a wasteful number, since it uses less digits than its factorization.

2001001201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185277916 (or 185277899 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2001001201200 its reverse (21021001002), we get a palindrome (2022022202202).

The spelling of 2001001201200 in words is "two trillion, one billion, one million, two hundred one thousand, two hundred".