12220222312320 has 128 divisors (see below), whose sum is σ = 42493045841280. Its totient is φ = 2962478131200.

The previous prime is 12220222312261. The next prime is 12220222312321. The reversal of 12220222312320 is 2321322202221.

It is a tau number, because it is divible by the number of its divisors (128).

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 (12220222312321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289283386 + ... + 289325625.

It is an arithmetic number, because the mean of its divisors is an integer number (331976920635).

Almost surely, 2^{12220222312320} is an apocalyptic number.

12220222312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220222312320 is an abundant number, since it is smaller than the sum of its proper divisors (30272823528960).

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

12220222312320 is a wasteful number, since it uses less digits than its factorization.

12220222312320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578609044 (or 578609032 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12220222312320 its reverse (2321322202221), we get a palindrome (14541544514541).

The spelling of 12220222312320 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-two million, three hundred twelve thousand, three hundred twenty".