12023221442 has 8 divisors (see below), whose sum is σ = 18047096832. Its totient is φ = 6007522500.

The previous prime is 12023221439. The next prime is 12023221453. The reversal of 12023221442 is 24412232021.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040434 + ... + 2046317.

It is an arithmetic number, because the mean of its divisors is an integer number (2255887104).

Almost surely, 2^12023221442 is an apocalyptic number.

12023221442 is a deficient number, since it is larger than the sum of its proper divisors (6023875390).

12023221442 is a wasteful number, since it uses less digits than its factorization.

12023221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088224.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12023221442 its reverse (24412232021), we get a palindrome (36435453463).

The spelling of 12023221442 in words is "twelve billion, twenty-three million, two hundred twenty-one thousand, four hundred forty-two".