2001422417 has 2 divisors, whose sum is σ = 2001422418. Its totient is φ = 2001422416.

The previous prime is 2001422387. The next prime is 2001422429. The reversal of 2001422417 is 7142241002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1228081936 + 773340481 = 35044^2 + 27809^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001422417 - 2²⁰ = 2000373841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2001422392 and 2001422401.

It is not a weakly prime, because it can be changed into another prime (2001422447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000711208 + 1000711209.

It is an arithmetic number, because the mean of its divisors is an integer number (1000711209).

Almost surely, 2^2001422417 is an apocalyptic number.

It is an amenable number.

2001422417 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001422417 is an equidigital number, since it uses as much as digits as its factorization.

2001422417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2001422417 is about 44737.2598289167. The cubic root of 2001422417 is about 1260.2196679662.

Adding to 2001422417 its reverse (7142241002), we get a palindrome (9143663419).

The spelling of 2001422417 in words is "two billion, one million, four hundred twenty-two thousand, four hundred seventeen".