112222001 has 2 divisors, whose sum is σ = 112222002. Its totient is φ = 112222000.

The previous prime is 112221983. The next prime is 112222007. The reversal of 112222001 is 100222211.

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., 112042225 + 179776 = 10585^2 + 424^2 .

It is a cyclic number.

It is not a de Polignac number, because 112222001 - 2⁶ = 112221937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (112222007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56111000 + 56111001.

It is an arithmetic number, because the mean of its divisors is an integer number (56111001).

Almost surely, 2^112222001 is an apocalyptic number.

It is an amenable number.

112222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

112222001 is an equidigital number, since it uses as much as digits as its factorization.

112222001 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 11.

The square root of 112222001 is about 10593.4886132945. The cubic root of 112222001 is about 482.3467271578.

Adding to 112222001 its reverse (100222211), we get a palindrome (212444212).

The spelling of 112222001 in words is "one hundred twelve million, two hundred twenty-two thousand, one".