11020121212211 has 2 divisors, whose sum is σ = 11020121212212. Its totient is φ = 11020121212210.

The previous prime is 11020121212151. The next prime is 11020121212237. The reversal of 11020121212211 is 11221212102011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11020121212211 - 2²² = 11020117017907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11020121212211.

It is not a weakly prime, because it can be changed into another prime (11020121214211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510060606105 + 5510060606106.

It is an arithmetic number, because the mean of its divisors is an integer number (5510060606106).

Almost surely, 2^{11020121212211} is an apocalyptic number.

11020121212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020121212211 is an equidigital number, since it uses as much as digits as its factorization.

11020121212211 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 17.

Adding to 11020121212211 its reverse (11221212102011), we get a palindrome (22241333314222).

The spelling of 11020121212211 in words is "eleven trillion, twenty billion, one hundred twenty-one million, two hundred twelve thousand, two hundred eleven".