212222220211 has 2 divisors, whose sum is σ = 212222220212. Its totient is φ = 212222220210.

The previous prime is 212222220181. The next prime is 212222220229. The reversal of 212222220211 is 112022222212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212222220211 - 2¹¹ = 212222218163 is a prime.

It is not a weakly prime, because it can be changed into another prime (212222220911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111110105 + 106111110106.

It is an arithmetic number, because the mean of its divisors is an integer number (106111110106).

Almost surely, 2^212222220211 is an apocalyptic number.

212222220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222220211 is an equidigital number, since it uses as much as digits as its factorization.

212222220211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212222220211 its reverse (112022222212), we get a palindrome (324244442423).

The spelling of 212222220211 in words is "two hundred twelve billion, two hundred twenty-two million, two hundred twenty thousand, two hundred eleven".