222250745 has 4 divisors (see below), whose sum is σ = 266700900. Its totient is φ = 177800592.

The previous prime is 222250727. The next prime is 222250793. The reversal of 222250745 is 547052222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 547052222 = 2 ⋅273526111.

It can be written as a sum of positive squares in 2 ways, for example, as 46635241 + 175615504 = 6829^2 + 13252^2 .

It is a cyclic number.

It is not a de Polignac number, because 222250745 - 2⁶ = 222250681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22225070 + ... + 22225079.

It is an arithmetic number, because the mean of its divisors is an integer number (66675225).

Almost surely, 2^222250745 is an apocalyptic number.

It is an amenable number.

222250745 is a deficient number, since it is larger than the sum of its proper divisors (44450155).

222250745 is an equidigital number, since it uses as much as digits as its factorization.

222250745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44450154.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 222250745 is about 14908.0765023527. The cubic root of 222250745 is about 605.7327778322.

The spelling of 222250745 in words is "two hundred twenty-two million, two hundred fifty thousand, seven hundred forty-five".