2111022222111 has 12 divisors (see below), whose sum is σ = 3326459259240. Its totient is φ = 1279407407280.

The previous prime is 2111022222077. The next prime is 2111022222137. The reversal of 2111022222111 is 1112222201112.

2111022222111 is a `hidden beast` number, since 211 + 1 + 0 + 222 + 221 + 11 = 666.

It is not a de Polignac number, because 2111022222111 - 2⁷ = 2111022221983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111022222181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10661728296 + ... + 10661728493.

It is an arithmetic number, because the mean of its divisors is an integer number (277204938270).

Almost surely, 2^{2111022222111} is an apocalyptic number.

2111022222111 is a deficient number, since it is larger than the sum of its proper divisors (1215437037129).

2111022222111 is a wasteful number, since it uses less digits than its factorization.

2111022222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21323456806 (or 21323456803 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2111022222111 its reverse (1112222201112), we get a palindrome (3223244423223).

The spelling of 2111022222111 in words is "two trillion, one hundred eleven billion, twenty-two million, two hundred twenty-two thousand, one hundred eleven".