222223420 has 12 divisors (see below), whose sum is σ = 466669224. Its totient is φ = 88889360.

The previous prime is 222223387. The next prime is 222223471. The reversal of 222223420 is 24322222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555566 + ... + 5555605.

It is an arithmetic number, because the mean of its divisors is an integer number (38889102).

Almost surely, 2^222223420 is an apocalyptic number.

222223420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222223420 is an abundant number, since it is smaller than the sum of its proper divisors (244445804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222223420 is a wasteful number, since it uses less digits than its factorization.

222223420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111180 (or 11111178 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 222223420 is about 14907.1600246325. The cubic root of 222223420 is about 605.7079525288.

Adding to 222223420 its reverse (24322222), we get a palindrome (246545642).

The spelling of 222223420 in words is "two hundred twenty-two million, two hundred twenty-three thousand, four hundred twenty".