222715305 has 16 divisors (see below), whose sum is σ = 395938560. Its totient is φ = 118781424.

The previous prime is 222715301. The next prime is 222715309. The reversal of 222715305 is 503517222.

It is an interprime number because it is at equal distance from previous prime (222715301) and next prime (222715309).

It is not a de Polignac number, because 222715305 - 2² = 222715301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222715301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 824737 + ... + 825006.

It is an arithmetic number, because the mean of its divisors is an integer number (24746160).

Almost surely, 2^222715305 is an apocalyptic number.

It is an amenable number.

222715305 is a deficient number, since it is larger than the sum of its proper divisors (173223255).

222715305 is a wasteful number, since it uses less digits than its factorization.

222715305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649757 (or 1649751 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 222715305 is about 14923.6491851021. The cubic root of 222715305 is about 606.1545287717.

The spelling of 222715305 in words is "two hundred twenty-two million, seven hundred fifteen thousand, three hundred five".