2000122211111 has 4 divisors (see below), whose sum is σ = 2000129344032. Its totient is φ = 2000115078192.

The previous prime is 2000122211099. The next prime is 2000122211123. The reversal of 2000122211111 is 1111122210002.

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

It is an interprime number because it is at equal distance from previous prime (2000122211099) and next prime (2000122211123).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000122211111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000122217111) 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, 3127871 + ... + 3712656.

It is an arithmetic number, because the mean of its divisors is an integer number (500032336008).

Almost surely, 2^{2000122211111} is an apocalyptic number.

2000122211111 is a deficient number, since it is larger than the sum of its proper divisors (7132921).

2000122211111 is an equidigital number, since it uses as much as digits as its factorization.

2000122211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7132920.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2000122211111 its reverse (1111122210002), we get a palindrome (3111244421113).

The spelling of 2000122211111 in words is "two trillion, one hundred twenty-two million, two hundred eleven thousand, one hundred eleven".