12204210040 has 96 divisors (see below), whose sum is σ = 30295016640. Its totient is φ = 4421387520.

The previous prime is 12204210013. The next prime is 12204210043. The reversal of 12204210040 is 4001240221.

It is a junction number, because it is equal to n+sod(n) for n = 12204209996 and 12204210023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12204210043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1336129 + ... + 1345231.

It is an arithmetic number, because the mean of its divisors is an integer number (315573090).

Almost surely, 2^12204210040 is an apocalyptic number.

12204210040 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 12204210040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15147508320).

12204210040 is an abundant number, since it is smaller than the sum of its proper divisors (18090806600).

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

12204210040 is a wasteful number, since it uses less digits than its factorization.

12204210040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9413 (or 9398 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12204210040 its reverse (4001240221), we get a palindrome (16205450261).

The spelling of 12204210040 in words is "twelve billion, two hundred four million, two hundred ten thousand, forty".