12212042 has 8 divisors (see below), whose sum is σ = 18428256. Its totient is φ = 6069292.

The previous prime is 12212029. The next prime is 12212051. The reversal of 12212042 is 24021221.

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, 17948 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (2303532).

Almost surely, 2^12212042 is an apocalyptic number.

12212042 is a deficient number, since it is larger than the sum of its proper divisors (6216214).

12212042 is a wasteful number, since it uses less digits than its factorization.

12212042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36732.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12212042 is about 3494.5732214392. The cubic root of 12212042 is about 230.2834690138.

Adding to 12212042 its reverse (24021221), we get a palindrome (36233263).

The spelling of 12212042 in words is "twelve million, two hundred twelve thousand, forty-two".