222000111 has 12 divisors (see below), whose sum is σ = 329333992. Its totient is φ = 143999856.

The previous prime is 222000101. The next prime is 222000113. The reversal of 222000111 is 111000222.

It is not a de Polignac number, because 222000111 - 2⁷ = 221999983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222000093 and 222000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222000113) 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, 333001 + ... + 333666.

Almost surely, 2^222000111 is an apocalyptic number.

222000111 is a deficient number, since it is larger than the sum of its proper divisors (107333881).

222000111 is a wasteful number, since it uses less digits than its factorization.

222000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666710 (or 666707 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 222000111 is about 14899.6681506670. The cubic root of 222000111 is about 605.5049955686.

Adding to 222000111 its reverse (111000222), we get a palindrome (333000333).

It can be divided in two parts, 222000 and 111, that added together give a triangular number (222111 = T₆₆₆).

The spelling of 222000111 in words is "two hundred twenty-two million, one hundred eleven", and thus it is an aban number.