222422111 has 4 divisors (see below), whose sum is σ = 225741912. Its totient is φ = 219102312.

The previous prime is 222422093. The next prime is 222422119. The reversal of 222422111 is 111224222.

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 222422111 - 2⁶ = 222422047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222422111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222422119) 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, 1659800 + ... + 1659933.

It is an arithmetic number, because the mean of its divisors is an integer number (56435478).

Almost surely, 2^222422111 is an apocalyptic number.

222422111 is a deficient number, since it is larger than the sum of its proper divisors (3319801).

222422111 is an equidigital number, since it uses as much as digits as its factorization.

222422111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319800.

The product of its digits is 128, while the sum is 17.

The square root of 222422111 is about 14913.8228164344. The cubic root of 222422111 is about 605.8884208588. Note that the first 3 decimals are identical.

Adding to 222422111 its reverse (111224222), we get a palindrome (333646333).

The spelling of 222422111 in words is "two hundred twenty-two million, four hundred twenty-two thousand, one hundred eleven".