111222101273 has 2 divisors, whose sum is σ = 111222101274. Its totient is φ = 111222101272.

The previous prime is 111222101251. The next prime is 111222101329. The reversal of 111222101273 is 372101222111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97473835264 + 13748266009 = 312208^2 + 117253^2 .

It is a cyclic number.

It is not a de Polignac number, because 111222101273 - 2⁶ = 111222101209 is a prime.

It is not a weakly prime, because it can be changed into another prime (111222101203) 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, 55611050636 + 55611050637.

It is an arithmetic number, because the mean of its divisors is an integer number (55611050637).

Almost surely, 2^111222101273 is an apocalyptic number.

It is an amenable number.

111222101273 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222101273 is an equidigital number, since it uses as much as digits as its factorization.

111222101273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 111222101273 its reverse (372101222111), we get a palindrome (483323323384).

The spelling of 111222101273 in words is "one hundred eleven billion, two hundred twenty-two million, one hundred one thousand, two hundred seventy-three".