222112011122111 has 4 divisors (see below), whose sum is σ = 242304012133224. Its totient is φ = 201920010111000.

The previous prime is 222112011122081. The next prime is 222112011122129. The reversal of 222112011122111 is 111221110211222.

It is a happy number.

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 222112011122111 - 2¹⁰ = 222112011121087 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 (222112011122161) 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, 10096000505540 + ... + 10096000505561.

It is an arithmetic number, because the mean of its divisors is an integer number (60576003033306).

Almost surely, 2^{222112011122111} is an apocalyptic number.

222112011122111 is a deficient number, since it is larger than the sum of its proper divisors (20192001011113).

222112011122111 is a wasteful number, since it uses less digits than its factorization.

222112011122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20192001011112.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 222112011122111 its reverse (111221110211222), we get a palindrome (333333121333333).

The spelling of 222112011122111 in words is "two hundred twenty-two trillion, one hundred twelve billion, eleven million, one hundred twenty-two thousand, one hundred eleven".