12401422 has 16 divisors (see below), whose sum is σ = 20628144. Its totient is φ = 5544000.

The previous prime is 12401399. The next prime is 12401429. The reversal of 12401422 is 22410421.

It is a junction number, because it is equal to n+sod(n) for n = 12401396 and 12401405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3279 + ... + 5962.

It is an arithmetic number, because the mean of its divisors is an integer number (1289259).

Almost surely, 2^12401422 is an apocalyptic number.

12401422 is a deficient number, since it is larger than the sum of its proper divisors (8226722).

12401422 is a wasteful number, since it uses less digits than its factorization.

12401422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9315.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 12401422 is about 3521.5652769756. The cubic root of 12401422 is about 231.4677528177.

Adding to 12401422 its reverse (22410421), we get a palindrome (34811843).

It can be divided in two parts, 1240 and 1422, that added together give a palindrome (2662).

The spelling of 12401422 in words is "twelve million, four hundred one thousand, four hundred twenty-two".