112397221 has 2 divisors, whose sum is σ = 112397222. Its totient is φ = 112397220.

The previous prime is 112397213. The next prime is 112397249. The reversal of 112397221 is 122793211.

It is an a-pointer prime, because the next prime (112397249) can be obtained adding 112397221 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81993025 + 30404196 = 9055^2 + 5514^2 .

It is a cyclic number.

It is not a de Polignac number, because 112397221 - 2³ = 112397213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112397221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112397281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56198610 + 56198611.

It is an arithmetic number, because the mean of its divisors is an integer number (56198611).

Almost surely, 2^112397221 is an apocalyptic number.

It is an amenable number.

112397221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112397221 is an equidigital number, since it uses as much as digits as its factorization.

112397221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 28.

The square root of 112397221 is about 10601.7555621699. The cubic root of 112397221 is about 482.5976370910.

The spelling of 112397221 in words is "one hundred twelve million, three hundred ninety-seven thousand, two hundred twenty-one".