112220309 has 2 divisors, whose sum is σ = 112220310. Its totient is φ = 112220308.

The previous prime is 112220293. The next prime is 112220333. The reversal of 112220309 is 903022211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112042225 + 178084 = 10585^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 112220309 - 2⁴ = 112220293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112220359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110154 + 56110155.

It is an arithmetic number, because the mean of its divisors is an integer number (56110155).

Almost surely, 2^112220309 is an apocalyptic number.

It is an amenable number.

112220309 is a deficient number, since it is larger than the sum of its proper divisors (1).

112220309 is an equidigital number, since it uses as much as digits as its factorization.

112220309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 112220309 is about 10593.4087526159. The cubic root of 112220309 is about 482.3443029903.

The spelling of 112220309 in words is "one hundred twelve million, two hundred twenty thousand, three hundred nine".