2122022111111 has 32 divisors (see below), whose sum is σ = 2563396277760. Its totient is φ = 1716005782656.

The previous prime is 2122022111107. The next prime is 2122022111123. The reversal of 2122022111111 is 1111112202212.

It is not a de Polignac number, because 2122022111111 - 2² = 2122022111107 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 2122022111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122022111161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73557056 + ... + 73585898.

It is an arithmetic number, because the mean of its divisors is an integer number (80106133680).

Almost surely, 2^{2122022111111} is an apocalyptic number.

2122022111111 is a deficient number, since it is larger than the sum of its proper divisors (441374166649).

2122022111111 is a wasteful number, since it uses less digits than its factorization.

2122022111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31143.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2122022111111 its reverse (1111112202212), we get a palindrome (3233134313323).

The spelling of 2122022111111 in words is "two trillion, one hundred twenty-two billion, twenty-two million, one hundred eleven thousand, one hundred eleven".