12401022 has 16 divisors (see below), whose sum is σ = 24932880. Its totient is φ = 4111872.

The previous prime is 12400987. The next prime is 12401027. The reversal of 12401022 is 22010421.

It is a junction number, because it is equal to n+sod(n) for n = 12400989 and 12401007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401027) 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, 4197 + ... + 6512.

It is an arithmetic number, because the mean of its divisors is an integer number (1558305).

Almost surely, 2^12401022 is an apocalyptic number.

12401022 is an abundant number, since it is smaller than the sum of its proper divisors (12531858).

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

12401022 is a wasteful number, since it uses less digits than its factorization.

12401022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10907.

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

The square root of 12401022 is about 3521.5084835905. The cubic root of 12401022 is about 231.4652641758.

Adding to 12401022 its reverse (22010421), we get a palindrome (34411443).

The spelling of 12401022 in words is "twelve million, four hundred one thousand, twenty-two".