112221397 has 2 divisors, whose sum is σ = 112221398. Its totient is φ = 112221396.

The previous prime is 112221379. The next prime is 112221427. The reversal of 112221397 is 793122211.

Together with previous prime (112221379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81018001 + 31203396 = 9001^2 + 5586^2 .

It is a cyclic number.

It is not a de Polignac number, because 112221397 - 2¹⁹ = 111697109 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 (112227397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56110698 + 56110699.

It is an arithmetic number, because the mean of its divisors is an integer number (56110699).

Almost surely, 2^112221397 is an apocalyptic number.

It is an amenable number.

112221397 is a deficient number, since it is larger than the sum of its proper divisors (1).

112221397 is an equidigital number, since it uses as much as digits as its factorization.

112221397 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 112221397 is about 10593.4601051781. The cubic root of 112221397 is about 482.3458617958.

The spelling of 112221397 in words is "one hundred twelve million, two hundred twenty-one thousand, three hundred ninety-seven".