12211430 has 32 divisors (see below), whose sum is σ = 27406080. Its totient is φ = 3805920.

The previous prime is 12211421. The next prime is 12211447. The reversal of 12211430 is 3411221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7160 + ... + 8699.

It is an arithmetic number, because the mean of its divisors is an integer number (856440).

Almost surely, 2^12211430 is an apocalyptic number.

12211430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12211430 is an abundant number, since it is smaller than the sum of its proper divisors (15194650).

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

12211430 is a wasteful number, since it uses less digits than its factorization.

12211430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12211430 is about 3494.4856560015. The cubic root of 12211430 is about 230.2796221050.

Adding to 12211430 its reverse (3411221), we get a palindrome (15622651).

The spelling of 12211430 in words is "twelve million, two hundred eleven thousand, four hundred thirty".