12220220322 has 24 divisors (see below), whose sum is σ = 26484297840. Its totient is φ = 4072306200.

The previous prime is 12220220281. The next prime is 12220220323. The reversal of 12220220322 is 22302202221.

12220220322 is a `hidden beast` number, since 122 + 2 + 0 + 220 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12220220295 and 12220220304.

It is not an unprimeable number, because it can be changed into a prime (12220220323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21804 + ... + 157847.

It is an arithmetic number, because the mean of its divisors is an integer number (1103512410).

Almost surely, 2^12220220322 is an apocalyptic number.

12220220322 is an abundant number, since it is smaller than the sum of its proper divisors (14264077518).

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

12220220322 is a wasteful number, since it uses less digits than its factorization.

12220220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183438 (or 183435 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12220220322 its reverse (22302202221), we get a palindrome (34522422543).

The spelling of 12220220322 in words is "twelve billion, two hundred twenty million, two hundred twenty thousand, three hundred twenty-two".