12021301442 has 8 divisors (see below), whose sum is σ = 18070899456. Its totient is φ = 5997668292.

The previous prime is 12021301423. The next prime is 12021301529. The reversal of 12021301442 is 24410312021.

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, 6490058 + ... + 6491909.

It is an arithmetic number, because the mean of its divisors is an integer number (2258862432).

Almost surely, 2^12021301442 is an apocalyptic number.

12021301442 is a deficient number, since it is larger than the sum of its proper divisors (6049598014).

12021301442 is a wasteful number, since it uses less digits than its factorization.

12021301442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12982432.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12021301442 its reverse (24410312021), we get a palindrome (36431613463).

The spelling of 12021301442 in words is "twelve billion, twenty-one million, three hundred one thousand, four hundred forty-two".