12221302210 has 32 divisors (see below), whose sum is σ = 25084089072. Its totient is φ = 4247040000.

The previous prime is 12221302141. The next prime is 12221302213. The reversal of 12221302210 is 1220312221.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8481857409 + 3739444801 = 92097^2 + 61151^2 .

It is not an unprimeable number, because it can be changed into a prime (12221302213) 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, 2762791 + ... + 2767210.

Almost surely, 2^12221302210 is an apocalyptic number.

12221302210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221302210 is an abundant number, since it is smaller than the sum of its proper divisors (12862786862).

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

12221302210 is a wasteful number, since it uses less digits than its factorization.

12221302210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530038.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12221302210 its reverse (1220312221), we get a palindrome (13441614431).

The spelling of 12221302210 in words is "twelve billion, two hundred twenty-one million, three hundred two thousand, two hundred ten".