222210121111 has 16 divisors (see below), whose sum is σ = 244363603968. Its totient is φ = 200382638400.

The previous prime is 222210121093. The next prime is 222210121123. The reversal of 222210121111 is 111121012222.

It is a cyclic number.

It is not a de Polignac number, because 222210121111 - 2¹¹ = 222210119063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222210121181) 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, 10610931 + ... + 10631851.

It is an arithmetic number, because the mean of its divisors is an integer number (15272725248).

Almost surely, 2^222210121111 is an apocalyptic number.

222210121111 is a deficient number, since it is larger than the sum of its proper divisors (22153482857).

222210121111 is a wasteful number, since it uses less digits than its factorization.

222210121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28662.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222210121111 its reverse (111121012222), we get a palindrome (333331133333).

The spelling of 222210121111 in words is "two hundred twenty-two billion, two hundred ten million, one hundred twenty-one thousand, one hundred eleven".