12041212042 has 4 divisors (see below), whose sum is σ = 18061818066. Its totient is φ = 6020606020.

The previous prime is 12041212037. The next prime is 12041212097. The reversal of 12041212042 is 24021214021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24021214021 = 7 ⋅3431602003.

It can be written as a sum of positive squares in only one way, i.e., 11937966121 + 103245921 = 109261^2 + 10161^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3010303009 + ... + 3010303012.

Almost surely, 2^12041212042 is an apocalyptic number.

12041212042 is a deficient number, since it is larger than the sum of its proper divisors (6020606024).

12041212042 is an equidigital number, since it uses as much as digits as its factorization.

12041212042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6020606023.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12041212042 its reverse (24021214021), we get a palindrome (36062426063).

The spelling of 12041212042 in words is "twelve billion, forty-one million, two hundred twelve thousand, forty-two".