222638206 has 32 divisors (see below), whose sum is σ = 399260160. Its totient is φ = 91038816.

The previous prime is 222638203. The next prime is 222638209. The reversal of 222638206 is 602836222.

222638206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222638203) and next prime (222638209).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222638203) 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, 198760 + ... + 199876.

It is an arithmetic number, because the mean of its divisors is an integer number (12476880).

Almost surely, 2^222638206 is an apocalyptic number.

222638206 is a deficient number, since it is larger than the sum of its proper divisors (176621954).

222638206 is a wasteful number, since it uses less digits than its factorization.

222638206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 222638206 is about 14921.0658466478. The cubic root of 222638206 is about 606.0845750374.

The spelling of 222638206 in words is "two hundred twenty-two million, six hundred thirty-eight thousand, two hundred six".