12001422 has 32 divisors (see below), whose sum is σ = 25697952. Its totient is φ = 3723264.

The previous prime is 12001421. The next prime is 12001427. The reversal of 12001422 is 22410021.

It is a junction number, because it is equal to n+sod(n) for n = 12001398 and 12001407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9288 + ... + 10500.

It is an arithmetic number, because the mean of its divisors is an integer number (803061).

Almost surely, 2^12001422 is an apocalyptic number.

12001422 is an abundant number, since it is smaller than the sum of its proper divisors (13696530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12001422 is a wasteful number, since it uses less digits than its factorization.

12001422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12001422 is about 3464.3068570783. The cubic root of 12001422 is about 228.9518913960.

Adding to 12001422 its reverse (22410021), we get a palindrome (34411443).

The spelling of 12001422 in words is "twelve million, one thousand, four hundred twenty-two".