12421126 has 8 divisors (see below), whose sum is σ = 18743760. Its totient is φ = 6173208.

The previous prime is 12421121. The next prime is 12421163. The reversal of 12421126 is 62112421.

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

It is a super-2 number, since 2×12421126² = 308568742215752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421121) 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, 18261 + ... + 18928.

It is an arithmetic number, because the mean of its divisors is an integer number (2342970).

Almost surely, 2^12421126 is an apocalyptic number.

12421126 is a deficient number, since it is larger than the sum of its proper divisors (6322634).

12421126 is a wasteful number, since it uses less digits than its factorization.

12421126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37358.

The product of its digits is 192, while the sum is 19.

The square root of 12421126 is about 3524.3617861962. The cubic root of 12421126 is about 231.5902771335.

Adding to 12421126 its reverse (62112421), we get a palindrome (74533547).

The spelling of 12421126 in words is "twelve million, four hundred twenty-one thousand, one hundred twenty-six".