222212446 has 4 divisors (see below), whose sum is σ = 333318672. Its totient is φ = 111106222.

The previous prime is 222212443. The next prime is 222212479. The reversal of 222212446 is 644212222.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 222212446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212443) by changing a digit.

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 as a sum of consecutive naturals, namely, 55553110 + ... + 55553113.

It is an arithmetic number, because the mean of its divisors is an integer number (83329668).

Almost surely, 2^222212446 is an apocalyptic number.

222212446 is a deficient number, since it is larger than the sum of its proper divisors (111106226).

222212446 is a wasteful number, since it uses less digits than its factorization.

222212446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111106225.

The product of its digits is 3072, while the sum is 25.

The square root of 222212446 is about 14906.7919419304. The cubic root of 222212446 is about 605.6979818598.

Adding to 222212446 its reverse (644212222), we get a palindrome (866424668).

The spelling of 222212446 in words is "two hundred twenty-two million, two hundred twelve thousand, four hundred forty-six".