12220170240 has 272 divisors, whose sum is σ = 40466336256. Its totient is φ = 3145728000.

The previous prime is 12220170229. The next prime is 12220170241. The reversal of 12220170240 is 4207102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220170241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30474040 + ... + 30474440.

Almost surely, 2^12220170240 is an apocalyptic number.

12220170240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12220170240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20233168128).

12220170240 is an abundant number, since it is smaller than the sum of its proper divisors (28246166016).

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

12220170240 is an frugal number, since it uses more digits than its factorization.

12220170240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

Adding to 12220170240 its reverse (4207102221), we get a palindrome (16427272461).

The spelling of 12220170240 in words is "twelve billion, two hundred twenty million, one hundred seventy thousand, two hundred forty".