2001202021211 has 16 divisors (see below), whose sum is σ = 2127690988800. Its totient is φ = 1876841614368.

The previous prime is 2001202021207. The next prime is 2001202021219. The reversal of 2001202021211 is 1121202021002.

It is a cyclic number.

It is not a de Polignac number, because 2001202021211 - 2² = 2001202021207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001202021219) 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, 5738825 + ... + 6077541.

It is an arithmetic number, because the mean of its divisors is an integer number (132980686800).

Almost surely, 2^{2001202021211} is an apocalyptic number.

2001202021211 is a deficient number, since it is larger than the sum of its proper divisors (126488967589).

2001202021211 is a wasteful number, since it uses less digits than its factorization.

2001202021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341858.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001202021211 its reverse (1121202021002), we get a palindrome (3122404042213).

The spelling of 2001202021211 in words is "two trillion, one billion, two hundred two million, twenty-one thousand, two hundred eleven".