2100221310311 has 4 divisors (see below), whose sum is σ = 2101035667800. Its totient is φ = 2099406952824.

The previous prime is 2100221310301. The next prime is 2100221310331. The reversal of 2100221310311 is 1130131220012.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100221310311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100221310311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100221310301) 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, 407174876 + ... + 407180033.

It is an arithmetic number, because the mean of its divisors is an integer number (525258916950).

Almost surely, 2^{2100221310311} is an apocalyptic number.

2100221310311 is a deficient number, since it is larger than the sum of its proper divisors (814357489).

2100221310311 is an equidigital number, since it uses as much as digits as its factorization.

2100221310311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814357488.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2100221310311 its reverse (1130131220012), we get a palindrome (3230352530323).

The spelling of 2100221310311 in words is "two trillion, one hundred billion, two hundred twenty-one million, three hundred ten thousand, three hundred eleven".