222022211 has 2 divisors, whose sum is σ = 222022212. Its totient is φ = 222022210.

The previous prime is 222022189. The next prime is 222022259. The reversal of 222022211 is 112220222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222022211 - 2⁶ = 222022147 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222022271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111011105 + 111011106.

It is an arithmetic number, because the mean of its divisors is an integer number (111011106).

Almost surely, 2^222022211 is an apocalyptic number.

222022211 is a deficient number, since it is larger than the sum of its proper divisors (1).

222022211 is an equidigital number, since it uses as much as digits as its factorization.

222022211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 222022211 is about 14900.4097594663. The cubic root of 222022211 is about 605.5250874750.

Adding to 222022211 its reverse (112220222), we get a palindrome (334242433).

It can be divided in two parts, 2220222 and 11, that multiplied together give a palindrome (24422442).

The spelling of 222022211 in words is "two hundred twenty-two million, twenty-two thousand, two hundred eleven".