111221035193 has 2 divisors, whose sum is σ = 111221035194. Its totient is φ = 111221035192.

The previous prime is 111221035183. The next prime is 111221035271. The reversal of 111221035193 is 391530122111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111104222329 + 116812864 = 333323^2 + 10808^2 .

It is a cyclic number.

It is not a de Polignac number, because 111221035193 - 2⁸ = 111221034937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (111221035183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610517596 + 55610517597.

It is an arithmetic number, because the mean of its divisors is an integer number (55610517597).

Almost surely, 2^111221035193 is an apocalyptic number.

It is an amenable number.

111221035193 is a deficient number, since it is larger than the sum of its proper divisors (1).

111221035193 is an equidigital number, since it uses as much as digits as its factorization.

111221035193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 29.

The spelling of 111221035193 in words is "one hundred eleven billion, two hundred twenty-one million, thirty-five thousand, one hundred ninety-three".