2212231211 has 2 divisors, whose sum is σ = 2212231212. Its totient is φ = 2212231210.

The previous prime is 2212231187. The next prime is 2212231253. The reversal of 2212231211 is 1121322122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212231211 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2212231211.

It is not a weakly prime, because it can be changed into another prime (2212231291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106115605 + 1106115606.

It is an arithmetic number, because the mean of its divisors is an integer number (1106115606).

Almost surely, 2^2212231211 is an apocalyptic number.

2212231211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212231211 is an equidigital number, since it uses as much as digits as its factorization.

2212231211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 17.

The square root of 2212231211 is about 47034.3620239501. The cubic root of 2212231211 is about 1302.9972678456.

Adding to 2212231211 its reverse (1121322122), we get a palindrome (3333553333).

The spelling of 2212231211 in words is "two billion, two hundred twelve million, two hundred thirty-one thousand, two hundred eleven".