12302221000 has 32 divisors (see below), whose sum is σ = 28787199480. Its totient is φ = 4920888000.

The previous prime is 12302220977. The next prime is 12302221021. The reversal of 12302221000 is 12220321.

It can be written as a sum of positive squares in 4 ways, for example, as 5121692356 + 7180528644 = 71566^2 + 84738^2 .

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 7 ways as a sum of consecutive naturals, for example, 6150111 + ... + 6152110.

Almost surely, 2^12302221000 is an apocalyptic number.

12302221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12302221000 is an abundant number, since it is smaller than the sum of its proper divisors (16484978480).

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

12302221000 is a wasteful number, since it uses less digits than its factorization.

12302221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12302242 (or 12302228 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12302221000 its reverse (12220321), we get a palindrome (12314441321).

The spelling of 12302221000 in words is "twelve billion, three hundred two million, two hundred twenty-one thousand".