222111001222211 has 2 divisors, whose sum is σ = 222111001222212. Its totient is φ = 222111001222210.

The previous prime is 222111001222199. The next prime is 222111001222217. The reversal of 222111001222211 is 112222100111222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222111001222211 is a prime.

It is not a weakly prime, because it can be changed into another prime (222111001222217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055500611105 + 111055500611106.

It is an arithmetic number, because the mean of its divisors is an integer number (111055500611106).

Almost surely, 2^{222111001222211} is an apocalyptic number.

222111001222211 is a deficient number, since it is larger than the sum of its proper divisors (1).

222111001222211 is an equidigital number, since it uses as much as digits as its factorization.

222111001222211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 222111001222211 its reverse (112222100111222), we get a palindrome (334333101333433).

The spelling of 222111001222211 in words is "two hundred twenty-two trillion, one hundred eleven billion, one million, two hundred twenty-two thousand, two hundred eleven".