2001120111201 has 16 divisors (see below), whose sum is σ = 2709952044800. Its totient is φ = 1313284347648.

The previous prime is 2001120111169. The next prime is 2001120111251. The reversal of 2001120111201 is 1021110211002.

It is not a de Polignac number, because 2001120111201 - 2⁵ = 2001120111169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001120111251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12447646 + ... + 12607383.

It is an arithmetic number, because the mean of its divisors is an integer number (169372002800).

Almost surely, 2^{2001120111201} is an apocalyptic number.

It is an amenable number.

2001120111201 is a deficient number, since it is larger than the sum of its proper divisors (708831933599).

2001120111201 is a wasteful number, since it uses less digits than its factorization.

2001120111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25055448.

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

Adding to 2001120111201 its reverse (1021110211002), we get a palindrome (3022230322203).

The spelling of 2001120111201 in words is "two trillion, one billion, one hundred twenty million, one hundred eleven thousand, two hundred one".