12201442 has 8 divisors (see below), whose sum is σ = 19966032. Its totient is φ = 5546100.

The previous prime is 12201419. The next prime is 12201457. The reversal of 12201442 is 24410221.

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

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 3 ways as a sum of consecutive naturals, for example, 277284 + ... + 277327.

It is an arithmetic number, because the mean of its divisors is an integer number (2495754).

Almost surely, 2^12201442 is an apocalyptic number.

12201442 is a deficient number, since it is larger than the sum of its proper divisors (7764590).

12201442 is a wasteful number, since it uses less digits than its factorization.

12201442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554624.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 12201442 is about 3493.0562549149. The cubic root of 12201442 is about 230.2168213728.

Adding to 12201442 its reverse (24410221), we get a palindrome (36611663).

It can be divided in two parts, 1220 and 1442, that added together give a palindrome (2662).

The spelling of 12201442 in words is "twelve million, two hundred one thousand, four hundred forty-two".