2001202211031 has 4 divisors (see below), whose sum is σ = 2668269614712. Its totient is φ = 1334134807352.

The previous prime is 2001202210981. The next prime is 2001202211053. The reversal of 2001202211031 is 1301122021002.

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 2001202211031 - 2⁹ = 2001202210519 is a prime.

It is a super-2 number, since 2×2001202211031² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2001202211031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001202211081) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 333533701836 + ... + 333533701841.

It is an arithmetic number, because the mean of its divisors is an integer number (667067403678).

Almost surely, 2^{2001202211031} is an apocalyptic number.

2001202211031 is a deficient number, since it is larger than the sum of its proper divisors (667067403681).

2001202211031 is an equidigital number, since it uses as much as digits as its factorization.

2001202211031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667067403680.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2001202211031 its reverse (1301122021002), we get a palindrome (3302324232033).

The spelling of 2001202211031 in words is "two trillion, one billion, two hundred two million, two hundred eleven thousand, thirty-one".