111141225207209 has 2 divisors, whose sum is σ = 111141225207210. Its totient is φ = 111141225207208.

The previous prime is 111141225207193. The next prime is 111141225207211. The reversal of 111141225207209 is 902702522141111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90643195331584 + 20498029875625 = 9520672^2 + 4527475^2 .

It is a cyclic number.

It is not a de Polignac number, because 111141225207209 - 2⁴ = 111141225207193 is a prime.

Together with 111141225207211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111141225207109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55570612603604 + 55570612603605.

It is an arithmetic number, because the mean of its divisors is an integer number (55570612603605).

Almost surely, 2^{111141225207209} is an apocalyptic number.

It is an amenable number.

111141225207209 is a deficient number, since it is larger than the sum of its proper divisors (1).

111141225207209 is an equidigital number, since it uses as much as digits as its factorization.

111141225207209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 111141225207209 in words is "one hundred eleven trillion, one hundred forty-one billion, two hundred twenty-five million, two hundred seven thousand, two hundred nine".