12021122 has 8 divisors (see below), whose sum is σ = 18080400. Its totient is φ = 5994324.

The previous prime is 12021071. The next prime is 12021131. The reversal of 12021122 is 22112021.

It is a happy number.

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, 7172 + ... + 8687.

It is an arithmetic number, because the mean of its divisors is an integer number (2260050).

Almost surely, 2^12021122 is an apocalyptic number.

12021122 is a deficient number, since it is larger than the sum of its proper divisors (6059278).

12021122 is a wasteful number, since it uses less digits than its factorization.

12021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16240.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12021122 is about 3467.1489728594. The cubic root of 12021122 is about 229.0770956325.

Adding to 12021122 its reverse (22112021), we get a palindrome (34133143).

The spelling of 12021122 in words is "twelve million, twenty-one thousand, one hundred twenty-two".