222111011121 has 16 divisors (see below), whose sum is σ = 298187447040. Its totient is φ = 147056174720.

The previous prime is 222111011069. The next prime is 222111011141. The reversal of 222111011121 is 121110111222.

It is a happy number.

222111011121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 222111011121 - 2¹⁴ = 222110994737 is a prime.

It is a super-2 number, since 2×222111011121² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222111011121.

It is not an unprimeable number, because it can be changed into a prime (222111011141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237925 + ... + 707693.

It is an arithmetic number, because the mean of its divisors is an integer number (18636715440).

Almost surely, 2^222111011121 is an apocalyptic number.

It is an amenable number.

222111011121 is a deficient number, since it is larger than the sum of its proper divisors (76076435919).

222111011121 is a wasteful number, since it uses less digits than its factorization.

222111011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470856.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 222111011121 its reverse (121110111222), we get a palindrome (343221122343).

The spelling of 222111011121 in words is "two hundred twenty-two billion, one hundred eleven million, eleven thousand, one hundred twenty-one".