12210331112 has 64 divisors (see below), whose sum is σ = 26525041920. Its totient is φ = 5161402368.

The previous prime is 12210331097. The next prime is 12210331121. The reversal of 12210331112 is 21113301221.

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, 1478258 + ... + 1486494.

It is an arithmetic number, because the mean of its divisors is an integer number (414453780).

Almost surely, 2^12210331112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12210331112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13262520960).

12210331112 is an abundant number, since it is smaller than the sum of its proper divisors (14314710808).

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

12210331112 is a wasteful number, since it uses less digits than its factorization.

12210331112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8610 (or 8606 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12210331112 its reverse (21113301221), we get a palindrome (33323632333).

The spelling of 12210331112 in words is "twelve billion, two hundred ten million, three hundred thirty-one thousand, one hundred twelve".