111202120122211 has 2 divisors, whose sum is σ = 111202120122212. Its totient is φ = 111202120122210.

The previous prime is 111202120122187. The next prime is 111202120122277. The reversal of 111202120122211 is 112221021202111.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (112221021202111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111202120122211 - 2³⁹ = 110652364308323 is a prime.

It is not a weakly prime, because it can be changed into another prime (111202120122311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55601060061105 + 55601060061106.

It is an arithmetic number, because the mean of its divisors is an integer number (55601060061106).

Almost surely, 2^{111202120122211} is an apocalyptic number.

111202120122211 is a deficient number, since it is larger than the sum of its proper divisors (1).

111202120122211 is an equidigital number, since it uses as much as digits as its factorization.

111202120122211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111202120122211 its reverse (112221021202111), we get a palindrome (223423141324322).

The spelling of 111202120122211 in words is "one hundred eleven trillion, two hundred two billion, one hundred twenty million, one hundred twenty-two thousand, two hundred eleven".