12301312220 has 48 divisors (see below), whose sum is σ = 26737724160. Its totient is φ = 4748330496.

The previous prime is 12301312207. The next prime is 12301312229. The reversal of 12301312220 is 2221310321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12301312229) 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, 1383509 + ... + 1392371.

It is an arithmetic number, because the mean of its divisors is an integer number (557035920).

Almost surely, 2^12301312220 is an apocalyptic number.

12301312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12301312220 is an abundant number, since it is smaller than the sum of its proper divisors (14436411940).

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

12301312220 is a wasteful number, since it uses less digits than its factorization.

12301312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11294 (or 11292 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12301312220 its reverse (2221310321), we get a palindrome (14522622541).

The spelling of 12301312220 in words is "twelve billion, three hundred one million, three hundred twelve thousand, two hundred twenty".