222216086 has 16 divisors (see below), whose sum is σ = 340908480. Its totient is φ = 108605640.

The previous prime is 222216079. The next prime is 222216089. The reversal of 222216086 is 680612222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222216089) 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, 11225 + ... + 23883.

It is an arithmetic number, because the mean of its divisors is an integer number (21306780).

Almost surely, 2^222216086 is an apocalyptic number.

222216086 is a deficient number, since it is larger than the sum of its proper divisors (118692394).

222216086 is a wasteful number, since it uses less digits than its factorization.

222216086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12859.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 222216086 is about 14906.9140334276. The cubic root of 222216086 is about 605.7012890982.

The spelling of 222216086 in words is "two hundred twenty-two million, two hundred sixteen thousand, eighty-six".