2122000111111 has 16 divisors (see below), whose sum is σ = 2176761742848. Its totient is φ = 2067383102400.

The previous prime is 2122000111069. The next prime is 2122000111123. The reversal of 2122000111111 is 1111110002212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2122000111111 - 2²¹ = 2121998013959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122000111091 and 2122000111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122000111151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152621986 + ... + 152635888.

It is an arithmetic number, because the mean of its divisors is an integer number (136047608928).

Almost surely, 2^{2122000111111} is an apocalyptic number.

2122000111111 is a deficient number, since it is larger than the sum of its proper divisors (54761631737).

2122000111111 is a wasteful number, since it uses less digits than its factorization.

2122000111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18822.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2122000111111 its reverse (1111110002212), we get a palindrome (3233110113323).

The spelling of 2122000111111 in words is "two trillion, one hundred twenty-two billion, one hundred eleven thousand, one hundred eleven".