12102231040 has 88 divisors (see below), whose sum is σ = 29523962880. Its totient is φ = 4758724608.

The previous prime is 12102231017. The next prime is 12102231049. The reversal of 12102231040 is 4013220121.

It is a super-2 number, since 2×12102231040² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (12102231049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282049 + ... + 322111.

Almost surely, 2^12102231040 is an apocalyptic number.

12102231040 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 12102231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14761981440).

12102231040 is an abundant number, since it is smaller than the sum of its proper divisors (17421731840).

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

12102231040 is an equidigital number, since it uses as much as digits as its factorization.

12102231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40147 (or 40129 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12102231040 its reverse (4013220121), we get a palindrome (16115451161).

The spelling of 12102231040 in words is "twelve billion, one hundred two million, two hundred thirty-one thousand, forty".