11121011220211 has 2 divisors, whose sum is σ = 11121011220212. Its totient is φ = 11121011220210.

The previous prime is 11121011220127. The next prime is 11121011220227. The reversal of 11121011220211 is 11202211012111.

It is an a-pointer prime, because the next prime (11121011220227) can be obtained adding 11121011220211 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11121011220211 - 2¹³ = 11121011212019 is a prime.

It is not a weakly prime, because it can be changed into another prime (11121011220311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560505610105 + 5560505610106.

It is an arithmetic number, because the mean of its divisors is an integer number (5560505610106).

Almost surely, 2^{11121011220211} is an apocalyptic number.

11121011220211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121011220211 is an equidigital number, since it uses as much as digits as its factorization.

11121011220211 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 11121011220211 its reverse (11202211012111), we get a palindrome (22323222232322).

The spelling of 11121011220211 in words is "eleven trillion, one hundred twenty-one billion, eleven million, two hundred twenty thousand, two hundred eleven".