222220222212211 has 2 divisors, whose sum is σ = 222220222212212. Its totient is φ = 222220222212210.

The previous prime is 222220222212161. The next prime is 222220222212217. The reversal of 222220222212211 is 112212222022222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222220222212211 - 2²³ = 222220213823603 is a prime.

It is not a weakly prime, because it can be changed into another prime (222220222212217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110111106105 + 111110111106106.

It is an arithmetic number, because the mean of its divisors is an integer number (111110111106106).

Almost surely, 2^{222220222212211} is an apocalyptic number.

222220222212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

222220222212211 is an equidigital number, since it uses as much as digits as its factorization.

222220222212211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 222220222212211 its reverse (112212222022222), we get a palindrome (334432444234433).

The spelling of 222220222212211 in words is "two hundred twenty-two trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twelve thousand, two hundred eleven".