2001120120211 has 4 divisors (see below), whose sum is σ = 2002302118432. Its totient is φ = 1999938121992.

The previous prime is 2001120120203. The next prime is 2001120120247. The reversal of 2001120120211 is 1120210211002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001120120211 - 2³ = 2001120120203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001120120191 and 2001120120200.

It is not an unprimeable number, because it can be changed into a prime (2001120120271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590996571 + ... + 590999956.

It is an arithmetic number, because the mean of its divisors is an integer number (500575529608).

Almost surely, 2^{2001120120211} is an apocalyptic number.

2001120120211 is a deficient number, since it is larger than the sum of its proper divisors (1181998221).

2001120120211 is a wasteful number, since it uses less digits than its factorization.

2001120120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181998220.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2001120120211 its reverse (1120210211002), we get a palindrome (3121330331213).

The spelling of 2001120120211 in words is "two trillion, one billion, one hundred twenty million, one hundred twenty thousand, two hundred eleven".