12280210320 has 160 divisors (see below), whose sum is σ = 43906832640. Its totient is φ = 2781112320.

The previous prime is 12280210309. The next prime is 12280210357. The reversal of 12280210320 is 2301208221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149590 + ... + 216650.

It is an arithmetic number, because the mean of its divisors is an integer number (274417704).

Almost surely, 2^12280210320 is an apocalyptic number.

12280210320 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 12280210320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21953416320).

12280210320 is an abundant number, since it is smaller than the sum of its proper divisors (31626622320).

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

12280210320 is a wasteful number, since it uses less digits than its factorization.

12280210320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67193 (or 67187 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12280210320 its reverse (2301208221), we get a palindrome (14581418541).

The spelling of 12280210320 in words is "twelve billion, two hundred eighty million, two hundred ten thousand, three hundred twenty".