12001320222 has 32 divisors (see below), whose sum is σ = 25446580224. Its totient is φ = 3766759200.

The previous prime is 12001320217. The next prime is 12001320223. The reversal of 12001320222 is 22202310021.

It is a happy number.

It is a super-2 number, since 2×12001320222² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001320223) 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 15 ways as a sum of consecutive naturals, for example, 865054 + ... + 878817.

It is an arithmetic number, because the mean of its divisors is an integer number (795205632).

Almost surely, 2^12001320222 is an apocalyptic number.

12001320222 is an abundant number, since it is smaller than the sum of its proper divisors (13445260002).

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

12001320222 is a wasteful number, since it uses less digits than its factorization.

12001320222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743944.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12001320222 its reverse (22202310021), we get a palindrome (34203630243).

The spelling of 12001320222 in words is "twelve billion, one million, three hundred twenty thousand, two hundred twenty-two".