12201102220 has 12 divisors (see below), whose sum is σ = 25622314704. Its totient is φ = 4880440880.

The previous prime is 12201102167. The next prime is 12201102229. The reversal of 12201102220 is 2220110221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12201102220.

It is not an unprimeable number, because it can be changed into a prime (12201102229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305027536 + ... + 305027575.

It is an arithmetic number, because the mean of its divisors is an integer number (2135192892).

Almost surely, 2^12201102220 is an apocalyptic number.

12201102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12201102220 is an abundant number, since it is smaller than the sum of its proper divisors (13421212484).

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

12201102220 is a wasteful number, since it uses less digits than its factorization.

12201102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610055120 (or 610055118 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12201102220 its reverse (2220110221), we get a palindrome (14421212441).

The spelling of 12201102220 in words is "twelve billion, two hundred one million, one hundred two thousand, two hundred twenty".