222250730 has 32 divisors (see below), whose sum is σ = 438966864. Its totient is φ = 80510976.

The previous prime is 222250727. The next prime is 222250793. The reversal of 222250730 is 37052222.

It can be written as a sum of positive squares in 8 ways, for example, as 52548001 + 169702729 = 7249^2 + 13027^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222250696 and 222250705.

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 15 ways as a sum of consecutive naturals, for example, 9239 + ... + 23018.

Almost surely, 2^222250730 is an apocalyptic number.

222250730 is a deficient number, since it is larger than the sum of its proper divisors (216716134).

222250730 is a wasteful number, since it uses less digits than its factorization.

222250730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32330.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 222250730 is about 14908.0759992697. The cubic root of 222250730 is about 605.7327642049.

The spelling of 222250730 in words is "two hundred twenty-two million, two hundred fifty thousand, seven hundred thirty".