12331220322222 has 32 divisors (see below), whose sum is σ = 27438346135200. Its totient is φ = 4105061627904.

The previous prime is 12331220322221. The next prime is 12331220322241. The reversal of 12331220322222 is 22222302213321.

12331220322222 is a `hidden beast` number, since 1 + 2 + 3 + 312 + 2 + 0 + 322 + 2 + 22 = 666.

12331220322222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331220322221) 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, 148434373 + ... + 148517424.

It is an arithmetic number, because the mean of its divisors is an integer number (857448316725).

Almost surely, 2^{12331220322222} is an apocalyptic number.

12331220322222 is an abundant number, since it is smaller than the sum of its proper divisors (15107125812978).

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

12331220322222 is a wasteful number, since it uses less digits than its factorization.

12331220322222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296952577 (or 296952571 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12331220322222 its reverse (22222302213321), we get a palindrome (34553522535543).

The spelling of 12331220322222 in words is "twelve trillion, three hundred thirty-one billion, two hundred twenty million, three hundred twenty-two thousand, two hundred twenty-two".