12302321022 has 24 divisors (see below), whose sum is σ = 26676730080. Its totient is φ = 4097435040.

The previous prime is 12302321011. The next prime is 12302321047. The reversal of 12302321022 is 22012320321.

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 = 12302320986 and 12302321004.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 255447 + ... + 299762.

It is an arithmetic number, because the mean of its divisors is an integer number (1111530420).

Almost surely, 2^12302321022 is an apocalyptic number.

12302321022 is an abundant number, since it is smaller than the sum of its proper divisors (14374409058).

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

12302321022 is a wasteful number, since it uses less digits than its factorization.

12302321022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556448 (or 556445 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12302321022 its reverse (22012320321), we get a palindrome (34314641343).

The spelling of 12302321022 in words is "twelve billion, three hundred two million, three hundred twenty-one thousand, twenty-two".