12201100220 has 12 divisors (see below), whose sum is σ = 25622310504. Its totient is φ = 4880440080.

The previous prime is 12201100213. The next prime is 12201100229. The reversal of 12201100220 is 2200110221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201100229) 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 3 ways as a sum of consecutive naturals, for example, 305027486 + ... + 305027525.

It is an arithmetic number, because the mean of its divisors is an integer number (2135192542).

Almost surely, 2^12201100220 is an apocalyptic number.

12201100220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201100220 is an abundant number, since it is smaller than the sum of its proper divisors (13421210284).

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

12201100220 is a wasteful number, since it uses less digits than its factorization.

12201100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610055020 (or 610055018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12201100220 its reverse (2200110221), we get a palindrome (14401210441).

The spelling of 12201100220 in words is "twelve billion, two hundred one million, one hundred thousand, two hundred twenty".