12402022 has 8 divisors (see below), whose sum is σ = 19582200. Its totient is φ = 5874624.

The previous prime is 12402011. The next prime is 12402023. The reversal of 12402022 is 22020421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12401993 and 12402011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163147 + ... + 163222.

It is an arithmetic number, because the mean of its divisors is an integer number (2447775).

Almost surely, 2^12402022 is an apocalyptic number.

12402022 is a deficient number, since it is larger than the sum of its proper divisors (7180178).

12402022 is a wasteful number, since it uses less digits than its factorization.

12402022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326390.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 12402022 is about 3521.6504653358. The cubic root of 12402022 is about 231.4714856803.

Adding to 12402022 its reverse (22020421), we get a palindrome (34422443).

The spelling of 12402022 in words is "twelve million, four hundred two thousand, twenty-two".