222212223 has 24 divisors (see below), whose sum is σ = 336312288. Its totient is φ = 141115392.

The previous prime is 222212209. The next prime is 222212233. The reversal of 222212223 is 322212222.

It is not a de Polignac number, because 222212223 - 2⁹ = 222211711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222212196 and 222212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51111 + ... + 55287.

It is an arithmetic number, because the mean of its divisors is an integer number (14013012).

Almost surely, 2^222212223 is an apocalyptic number.

222212223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

222212223 is a deficient number, since it is larger than the sum of its proper divisors (114100065).

222212223 is a wasteful number, since it uses less digits than its factorization.

222212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463 (or 4460 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 222212223 is about 14906.7844621166. The cubic root of 222212223 is about 605.6977792448.

Adding to 222212223 its reverse (322212222), we get a palindrome (544424445).

Subtracting 222212223 from its reverse (322212222), we obtain a palindrome (99999999).

The spelling of 222212223 in words is "two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-three".