222228730 has 16 divisors (see below), whose sum is σ = 409315104. Its totient is φ = 86824080.

The previous prime is 222228719. The next prime is 222228757. The reversal of 222228730 is 37822222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257976 + ... + 258835.

It is an arithmetic number, because the mean of its divisors is an integer number (25582194).

Almost surely, 2^222228730 is an apocalyptic number.

222228730 is a deficient number, since it is larger than the sum of its proper divisors (187086374).

222228730 is a wasteful number, since it uses less digits than its factorization.

222228730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516861.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 222228730 is about 14907.3381259030. The cubic root of 222228730 is about 605.7127769282.

The spelling of 222228730 in words is "two hundred twenty-two million, two hundred twenty-eight thousand, seven hundred thirty".