2222122112111 has 4 divisors (see below), whose sum is σ = 2424133213224. Its totient is φ = 2020111011000.

The previous prime is 2222122112107. The next prime is 2222122112137. The reversal of 2222122112111 is 1112112212222.

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

It is a cyclic number.

It is not a de Polignac number, because 2222122112111 - 2² = 2222122112107 is a prime.

It is a super-2 number, since 2×2222122112111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222122102111) 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, 101005550540 + ... + 101005550561.

It is an arithmetic number, because the mean of its divisors is an integer number (606033303306).

Almost surely, 2^{2222122112111} is an apocalyptic number.

2222122112111 is a deficient number, since it is larger than the sum of its proper divisors (202011101113).

2222122112111 is a wasteful number, since it uses less digits than its factorization.

2222122112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202011101112.

The product of its digits is 128, while the sum is 20.

Adding to 2222122112111 its reverse (1112112212222), we get a palindrome (3334234324333).

The spelling of 2222122112111 in words is "two trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred twelve thousand, one hundred eleven".