12210012340 has 48 divisors (see below), whose sum is σ = 27158386752. Its totient is φ = 4595175936.

The previous prime is 12210012319. The next prime is 12210012343. The reversal of 12210012340 is 4321001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210012343) 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, 1978099 + ... + 1984261.

It is an arithmetic number, because the mean of its divisors is an integer number (565799724).

Almost surely, 2^12210012340 is an apocalyptic number.

12210012340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210012340 is an abundant number, since it is smaller than the sum of its proper divisors (14948374412).

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

12210012340 is a wasteful number, since it uses less digits than its factorization.

12210012340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016 (or 12014 counting only the distinct ones).

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

Adding to 12210012340 its reverse (4321001221), we get a palindrome (16531013561).

The spelling of 12210012340 in words is "twelve billion, two hundred ten million, twelve thousand, three hundred forty".