220212123211 has 2 divisors, whose sum is σ = 220212123212. Its totient is φ = 220212123210.

The previous prime is 220212123203. The next prime is 220212123217. The reversal of 220212123211 is 112321212022.

220212123211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220212123211 - 2³ = 220212123203 is a prime.

It is not a weakly prime, because it can be changed into another prime (220212123217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110106061605 + 110106061606.

It is an arithmetic number, because the mean of its divisors is an integer number (110106061606).

Almost surely, 2^220212123211 is an apocalyptic number.

220212123211 is a deficient number, since it is larger than the sum of its proper divisors (1).

220212123211 is an equidigital number, since it uses as much as digits as its factorization.

220212123211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 220212123211 its reverse (112321212022), we get a palindrome (332533335233).

The spelling of 220212123211 in words is "two hundred twenty billion, two hundred twelve million, one hundred twenty-three thousand, two hundred eleven".