12322100220 has 24 divisors (see below), whose sum is σ = 34501880784. Its totient is φ = 3285893376.

The previous prime is 12322100179. The next prime is 12322100227. The reversal of 12322100220 is 2200122321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12322100220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12322100227) 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, 102684109 + ... + 102684228.

It is an arithmetic number, because the mean of its divisors is an integer number (1437578366).

Almost surely, 2^12322100220 is an apocalyptic number.

12322100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12322100220 is an abundant number, since it is smaller than the sum of its proper divisors (22179780564).

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

12322100220 is a wasteful number, since it uses less digits than its factorization.

12322100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205368349 (or 205368347 counting only the distinct ones).

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

Adding to 12322100220 its reverse (2200122321), we get a palindrome (14522222541).

The spelling of 12322100220 in words is "twelve billion, three hundred twenty-two million, one hundred thousand, two hundred twenty".