12204240220 has 48 divisors (see below), whose sum is σ = 27365184000. Its totient is φ = 4560849216.

The previous prime is 12204240203. The next prime is 12204240253. The reversal of 12204240220 is 2204240221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288720 + ... + 328279.

It is an arithmetic number, because the mean of its divisors is an integer number (570108000).

Almost surely, 2^12204240220 is an apocalyptic number.

12204240220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12204240220 is an abundant number, since it is smaller than the sum of its proper divisors (15160943780).

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

12204240220 is a wasteful number, since it uses less digits than its factorization.

12204240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617074 (or 617072 counting only the distinct ones).

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

Adding to 12204240220 its reverse (2204240221), we get a palindrome (14408480441).

Subtracting from 12204240220 its reverse (2204240221), we obtain a palindrome (9999999999).

The spelling of 12204240220 in words is "twelve billion, two hundred four million, two hundred forty thousand, two hundred twenty".