12210201018 has 24 divisors (see below), whose sum is σ = 26529141600. Its totient is φ = 4058727624.

The previous prime is 12210201011. The next prime is 12210201019. The reversal of 12210201018 is 81010201221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12210201011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 938308 + ... + 951231.

It is an arithmetic number, because the mean of its divisors is an integer number (1105380900).

Almost surely, 2^12210201018 is an apocalyptic number.

12210201018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12210201018 is an abundant number, since it is smaller than the sum of its proper divisors (14318940582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12210201018 is a wasteful number, since it uses less digits than its factorization.

12210201018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889906 (or 1889903 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12210201018 its reverse (81010201221), we get a palindrome (93220402239).

The spelling of 12210201018 in words is "twelve billion, two hundred ten million, two hundred one thousand, eighteen".