222223550 has 12 divisors (see below), whose sum is σ = 413335896. Its totient is φ = 88889400.

The previous prime is 222223501. The next prime is 222223571. The reversal of 222223550 is 55322222.

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 (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2222186 + ... + 2222285.

It is an arithmetic number, because the mean of its divisors is an integer number (34444658).

Almost surely, 2^222223550 is an apocalyptic number.

222223550 is a deficient number, since it is larger than the sum of its proper divisors (191112346).

222223550 is a wasteful number, since it uses less digits than its factorization.

222223550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444483 (or 4444478 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 222223550 is about 14907.1643849526. The cubic root of 222223550 is about 605.7080706411.

Adding to 222223550 its reverse (55322222), we get a palindrome (277545772).

The spelling of 222223550 in words is "two hundred twenty-two million, two hundred twenty-three thousand, five hundred fifty".