2221002122111 has 4 divisors (see below), whose sum is σ = 2317567431792. Its totient is φ = 2124436812432.

The previous prime is 2221002122093. The next prime is 2221002122161. The reversal of 2221002122111 is 1112212001222.

2221002122111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-2221002122111 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 2221002122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221002122161) 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, 48282654806 + ... + 48282654851.

It is an arithmetic number, because the mean of its divisors is an integer number (579391857948).

Almost surely, 2^{2221002122111} is an apocalyptic number.

2221002122111 is a deficient number, since it is larger than the sum of its proper divisors (96565309681).

2221002122111 is an equidigital number, since it uses as much as digits as its factorization.

2221002122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96565309680.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2221002122111 its reverse (1112212001222), we get a palindrome (3333214123333).

The spelling of 2221002122111 in words is "two trillion, two hundred twenty-one billion, two million, one hundred twenty-two thousand, one hundred eleven".