1112210221 has 2 divisors, whose sum is σ = 1112210222. Its totient is φ = 1112210220.

The previous prime is 1112210213. The next prime is 1112210237. The reversal of 1112210221 is 1220122111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1101576100 + 10634121 = 33190^2 + 3261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112210221 - 2³ = 1112210213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112270221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556105110 + 556105111.

It is an arithmetic number, because the mean of its divisors is an integer number (556105111).

Almost surely, 2^1112210221 is an apocalyptic number.

It is an amenable number.

1112210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112210221 is an equidigital number, since it uses as much as digits as its factorization.

1112210221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1112210221 is about 33349.8159065384. The cubic root of 1112210221 is about 1036.0855751005.

Adding to 1112210221 its reverse (1220122111), we get a palindrome (2332332332).

The spelling of 1112210221 in words is "one billion, one hundred twelve million, two hundred ten thousand, two hundred twenty-one".