422001311 has 4 divisors (see below), whose sum is σ = 423349872. Its totient is φ = 420652752.

The previous prime is 422001289. The next prime is 422001323. The reversal of 422001311 is 113100224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422001311 - 2¹⁸ = 421739167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422001341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673811 + ... + 674436.

It is an arithmetic number, because the mean of its divisors is an integer number (105837468).

Almost surely, 2^422001311 is an apocalyptic number.

422001311 is a deficient number, since it is larger than the sum of its proper divisors (1348561).

422001311 is a wasteful number, since it uses less digits than its factorization.

422001311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348560.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 422001311 is about 20542.6704933901. The cubic root of 422001311 is about 750.0748434940.

Adding to 422001311 its reverse (113100224), we get a palindrome (535101535).

The spelling of 422001311 in words is "four hundred twenty-two million, one thousand, three hundred eleven".