222100222 has 4 divisors (see below), whose sum is σ = 333150336. Its totient is φ = 111050110.

The previous prime is 222100211. The next prime is 222100231. The reversal of 222100222 is 222001222.

222100222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222001222 = 2 ⋅111000611.

It is a super-2 number, since 2×222100222² = 98657017224898568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55525054 + ... + 55525057.

It is an arithmetic number, because the mean of its divisors is an integer number (83287584).

Almost surely, 2^222100222 is an apocalyptic number.

222100222 is a deficient number, since it is larger than the sum of its proper divisors (111050114).

222100222 is a wasteful number, since it uses less digits than its factorization.

222100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111050113.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 222100222 is about 14903.0272763623. The cubic root of 222100222 is about 605.5959994285.

Adding to 222100222 its reverse (222001222), we get a palindrome (444101444).

The spelling of 222100222 in words is "two hundred twenty-two million, one hundred thousand, two hundred twenty-two".