1121101212211 has 2 divisors, whose sum is σ = 1121101212212. Its totient is φ = 1121101212210.

The previous prime is 1121101212197. The next prime is 1121101212311. The reversal of 1121101212211 is 1122121011211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121101212211 - 2³⁵ = 1086741473843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121101212311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560550606105 + 560550606106.

It is an arithmetic number, because the mean of its divisors is an integer number (560550606106).

Almost surely, 2^{1121101212211} is an apocalyptic number.

1121101212211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121101212211 is an equidigital number, since it uses as much as digits as its factorization.

1121101212211 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1121101212211 its reverse (1122121011211), we get a palindrome (2243222223422).

The spelling of 1121101212211 in words is "one trillion, one hundred twenty-one billion, one hundred one million, two hundred twelve thousand, two hundred eleven".