12021114242 has 4 divisors (see below), whose sum is σ = 18031671366. Its totient is φ = 6010557120.

The previous prime is 12021114229. The next prime is 12021114253. The reversal of 12021114242 is 24241112021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24241112021 = 7 ⋅3463016003.

It can be written as a sum of positive squares in only one way, i.e., 11996601841 + 24512401 = 109529^2 + 4951^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3005278559 + ... + 3005278562.

Almost surely, 2^12021114242 is an apocalyptic number.

12021114242 is a deficient number, since it is larger than the sum of its proper divisors (6010557124).

12021114242 is an equidigital number, since it uses as much as digits as its factorization.

12021114242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010557123.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12021114242 its reverse (24241112021), we get a palindrome (36262226263).

The spelling of 12021114242 in words is "twelve billion, twenty-one million, one hundred fourteen thousand, two hundred forty-two".