2321212211 has 2 divisors, whose sum is σ = 2321212212. Its totient is φ = 2321212210.

The previous prime is 2321212189. The next prime is 2321212247. The reversal of 2321212211 is 1122121232.

2321212211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321212211 is a prime.

It is a super-2 number, since 2×2321212211² = 10776052256991017042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2321212211.

It is not a weakly prime, because it can be changed into another prime (2321212261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160606105 + 1160606106.

It is an arithmetic number, because the mean of its divisors is an integer number (1160606106).

Almost surely, 2^2321212211 is an apocalyptic number.

2321212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321212211 is an equidigital number, since it uses as much as digits as its factorization.

2321212211 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 2321212211 is about 48178.9602523757. The cubic root of 2321212211 is about 1324.0517170754.

Adding to 2321212211 its reverse (1122121232), we get a palindrome (3443333443).

The spelling of 2321212211 in words is "two billion, three hundred twenty-one million, two hundred twelve thousand, two hundred eleven".