2002111211211 has 4 divisors (see below), whose sum is σ = 2669481614952. Its totient is φ = 1334740807472.

The previous prime is 2002111211173. The next prime is 2002111211297. The reversal of 2002111211211 is 1121121112002.

It is a happy number.

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 2002111211211 - 2⁷ = 2002111211083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002111211911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333685201866 + ... + 333685201871.

It is an arithmetic number, because the mean of its divisors is an integer number (667370403738).

Almost surely, 2^{2002111211211} is an apocalyptic number.

2002111211211 is a deficient number, since it is larger than the sum of its proper divisors (667370403741).

2002111211211 is an equidigital number, since it uses as much as digits as its factorization.

2002111211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667370403740.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2002111211211 its reverse (1121121112002), we get a palindrome (3123232323213).

The spelling of 2002111211211 in words is "two trillion, two billion, one hundred eleven million, two hundred eleven thousand, two hundred eleven".