222245815 has 8 divisors (see below), whose sum is σ = 290940048. Its totient is φ = 161633280.

The previous prime is 222245701. The next prime is 222245819. The reversal of 222245815 is 518542222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222245815 - 2¹⁷ = 222114743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222245819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2020362 + ... + 2020471.

It is an arithmetic number, because the mean of its divisors is an integer number (36367506).

Almost surely, 2^222245815 is an apocalyptic number.

222245815 is a deficient number, since it is larger than the sum of its proper divisors (68694233).

222245815 is a wasteful number, since it uses less digits than its factorization.

222245815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040849.

The product of its digits is 12800, while the sum is 31.

The square root of 222245815 is about 14907.9111548198. The cubic root of 222245815 is about 605.7282989800.

The spelling of 222245815 in words is "two hundred twenty-two million, two hundred forty-five thousand, eight hundred fifteen".