222850221 has 32 divisors (see below), whose sum is σ = 343795200. Its totient is φ = 126982080.

The previous prime is 222850207. The next prime is 222850247. The reversal of 222850221 is 122058222.

222850221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222850221 - 2⁵ = 222850189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222850191 and 222850200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222850261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85875 + ... + 88431.

It is an arithmetic number, because the mean of its divisors is an integer number (10743600).

Almost surely, 2^222850221 is an apocalyptic number.

It is an amenable number.

222850221 is a deficient number, since it is larger than the sum of its proper divisors (120944979).

222850221 is a wasteful number, since it uses less digits than its factorization.

222850221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 222850221 is about 14928.1687088537. The cubic root of 222850221 is about 606.2769023949.

The spelling of 222850221 in words is "two hundred twenty-two million, eight hundred fifty thousand, two hundred twenty-one".