220212211 has 2 divisors, whose sum is σ = 220212212. Its totient is φ = 220212210.

The previous prime is 220212173. The next prime is 220212217. The reversal of 220212211 is 112212022.

It is a happy number.

220212211 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 220212211 - 2²³ = 211823603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220212191 and 220212200.

It is not a weakly prime, because it can be changed into another prime (220212217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110106105 + 110106106.

It is an arithmetic number, because the mean of its divisors is an integer number (110106106).

Almost surely, 2^220212211 is an apocalyptic number.

220212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

220212211 is an equidigital number, since it uses as much as digits as its factorization.

220212211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 220212211 is about 14839.5488812834. The cubic root of 220212211 is about 603.8751139762.

Adding to 220212211 its reverse (112212022), we get a palindrome (332424233).

The spelling of 220212211 in words is "two hundred twenty million, two hundred twelve thousand, two hundred eleven".