112122001 has 2 divisors, whose sum is σ = 112122002. Its totient is φ = 112122000.

The previous prime is 112121981. The next prime is 112122041. The reversal of 112122001 is 100221211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87609600 + 24512401 = 9360^2 + 4951^2 .

It is an emirp because it is prime and its reverse (100221211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112122001 - 2¹³ = 112113809 is a prime.

It is not a weakly prime, because it can be changed into another prime (112122041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56061000 + 56061001.

It is an arithmetic number, because the mean of its divisors is an integer number (56061001).

Almost surely, 2^112122001 is an apocalyptic number.

It is an amenable number.

112122001 is a deficient number, since it is larger than the sum of its proper divisors (1).

112122001 is an equidigital number, since it uses as much as digits as its factorization.

112122001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 112122001 is about 10588.7676808966. The cubic root of 112122001 is about 482.2034129932.

Adding to 112122001 its reverse (100221211), we get a palindrome (212343212).

The spelling of 112122001 in words is "one hundred twelve million, one hundred twenty-two thousand, one".