12012212018 has 8 divisors (see below), whose sum is σ = 18235406448. Its totient is φ = 5933743204.

The previous prime is 12012212011. The next prime is 12012212027. The reversal of 12012212018 is 81021221021.

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

It is not an unprimeable number, because it can be changed into a prime (12012212011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36181196 + ... + 36181527.

It is an arithmetic number, because the mean of its divisors is an integer number (2279425806).

Almost surely, 2^12012212018 is an apocalyptic number.

12012212018 is a deficient number, since it is larger than the sum of its proper divisors (6223194430).

12012212018 is an equidigital number, since it uses as much as digits as its factorization.

12012212018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72362808.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12012212018 its reverse (81021221021), we get a palindrome (93033433039).

The spelling of 12012212018 in words is "twelve billion, twelve million, two hundred twelve thousand, eighteen".