12051422 has 4 divisors (see below), whose sum is σ = 18077136. Its totient is φ = 6025710.

The previous prime is 12051409. The next prime is 12051433. The reversal of 12051422 is 22415021.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12051422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3012854 + ... + 3012857.

It is an arithmetic number, because the mean of its divisors is an integer number (4519284).

Almost surely, 2^12051422 is an apocalyptic number.

12051422 is a deficient number, since it is larger than the sum of its proper divisors (6025714).

12051422 is an equidigital number, since it uses as much as digits as its factorization.

12051422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6025713.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12051422 is about 3471.5158072519. The cubic root of 12051422 is about 229.2694019296.

Adding to 12051422 its reverse (22415021), we get a palindrome (34466443).

The spelling of 12051422 in words is "twelve million, fifty-one thousand, four hundred twenty-two".