2111205211 has 2 divisors, whose sum is σ = 2111205212. Its totient is φ = 2111205210.

The previous prime is 2111205199. The next prime is 2111205221. The reversal of 2111205211 is 1125021112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111205211 - 2⁵ = 2111205179 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111205221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055602605 + 1055602606.

It is an arithmetic number, because the mean of its divisors is an integer number (1055602606).

Almost surely, 2^2111205211 is an apocalyptic number.

2111205211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111205211 is an equidigital number, since it uses as much as digits as its factorization.

2111205211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 2111205211 is about 45947.8531707413. The cubic root of 2111205211 is about 1282.8527703281.

Adding to 2111205211 its reverse (1125021112), we get a palindrome (3236226323).

The spelling of 2111205211 in words is "two billion, one hundred eleven million, two hundred five thousand, two hundred eleven".