12020020220018 has 16 divisors (see below), whose sum is σ = 18087412257600. Its totient is φ = 5990893696656.

The previous prime is 12020020220017. The next prime is 12020020220029. The reversal of 12020020220018 is 81002202002021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12020020220017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514430 + ... + 4929977.

It is an arithmetic number, because the mean of its divisors is an integer number (1130463266100).

Almost surely, 2^{12020020220018} is an apocalyptic number.

12020020220018 is a deficient number, since it is larger than the sum of its proper divisors (6067392037582).

12020020220018 is a wasteful number, since it uses less digits than its factorization.

12020020220018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5447921.

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

Adding to 12020020220018 its reverse (81002202002021), we get a palindrome (93022222222039).

The spelling of 12020020220018 in words is "twelve trillion, twenty billion, twenty million, two hundred twenty thousand, eighteen".