222244550 has 24 divisors (see below), whose sum is σ = 450955512. Its totient is φ = 80816000.

The previous prime is 222244537. The next prime is 222244567. The reversal of 222244550 is 55442222.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 201491 + ... + 202590.

It is an arithmetic number, because the mean of its divisors is an integer number (18789813).

Almost surely, 2^222244550 is an apocalyptic number.

222244550 is an abundant number, since it is smaller than the sum of its proper divisors (228710962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222244550 is a wasteful number, since it uses less digits than its factorization.

222244550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404104 (or 404099 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 222244550 is about 14907.8687276217. The cubic root of 222244550 is about 605.7271497304.

Adding to 222244550 its reverse (55442222), we get a palindrome (277686772).

The spelling of 222244550 in words is "two hundred twenty-two million, two hundred forty-four thousand, five hundred fifty".