222003212 has 6 divisors (see below), whose sum is σ = 388505628. Its totient is φ = 111001604.

The previous prime is 222003209. The next prime is 222003241. The reversal of 222003212 is 212300222.

It is a super-2 number, since 2×222003212² = 98570852276633888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27750398 + ... + 27750405.

It is an arithmetic number, because the mean of its divisors is an integer number (64750938).

Almost surely, 2^222003212 is an apocalyptic number.

It is an amenable number.

222003212 is a deficient number, since it is larger than the sum of its proper divisors (166502416).

222003212 is a wasteful number, since it uses less digits than its factorization.

222003212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55500807 (or 55500805 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 222003212 is about 14899.7722130239. The cubic root of 222003212 is about 605.5078148799.

Adding to 222003212 its reverse (212300222), we get a palindrome (434303434).

The spelling of 222003212 in words is "two hundred twenty-two million, three thousand, two hundred twelve".