222202423 has 4 divisors (see below), whose sum is σ = 222639480. Its totient is φ = 221765368.

The previous prime is 222202403. The next prime is 222202483. The reversal of 222202423 is 324202222.

It is a happy number.

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 222202423 - 2⁹ = 222201911 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 222202423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202403) 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, 217765 + ... + 218782.

It is an arithmetic number, because the mean of its divisors is an integer number (55659870).

Almost surely, 2^222202423 is an apocalyptic number.

222202423 is a deficient number, since it is larger than the sum of its proper divisors (437057).

222202423 is an equidigital number, since it uses as much as digits as its factorization.

222202423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437056.

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

The square root of 222202423 is about 14906.4557491041. The cubic root of 222202423 is about 605.6888749559.

Adding to 222202423 its reverse (324202222), we get a palindrome (546404645).

The spelling of 222202423 in words is "two hundred twenty-two million, two hundred two thousand, four hundred twenty-three".