12212223130320 has 80 divisors (see below), whose sum is σ = 37864907740800. Its totient is φ = 3255989304832.

The previous prime is 12212223130319. The next prime is 12212223130321. The reversal of 12212223130320 is 2303132221221.

It is an interprime number because it is at equal distance from previous prime (12212223130319) and next prime (12212223130321).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212223130321) 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, 3416619 + ... + 6008138.

It is an arithmetic number, because the mean of its divisors is an integer number (473311346760).

Almost surely, 2^{12212223130320} is an apocalyptic number.

12212223130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212223130320 is an abundant number, since it is smaller than the sum of its proper divisors (25652684610480).

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

12212223130320 is a wasteful number, since it uses less digits than its factorization.

12212223130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9430172 (or 9430166 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12212223130320 its reverse (2303132221221), we get a palindrome (14515355351541).

Subtracting from 12212223130320 its reverse (2303132221221), we obtain a palindrome (9909090909099).

The spelling of 12212223130320 in words is "twelve trillion, two hundred twelve billion, two hundred twenty-three million, one hundred thirty thousand, three hundred twenty".