12402222220 has 24 divisors (see below), whose sum is σ = 26117229600. Its totient is φ = 4947067392.

The previous prime is 12402222197. The next prime is 12402222221. The reversal of 12402222220 is 2222220421.

12402222220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12402222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856485 + ... + 870844.

It is an arithmetic number, because the mean of its divisors is an integer number (1088217900).

Almost surely, 2^12402222220 is an apocalyptic number.

12402222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12402222220 is an abundant number, since it is smaller than the sum of its proper divisors (13715007380).

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

12402222220 is a wasteful number, since it uses less digits than its factorization.

12402222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727697 (or 1727695 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 12402222220 its reverse (2222220421), we get a palindrome (14624442641).

The spelling of 12402222220 in words is "twelve billion, four hundred two million, two hundred twenty-two thousand, two hundred twenty".