12215345010 has 64 divisors (see below), whose sum is σ = 32298735744. Its totient is φ = 2931968000.

The previous prime is 12215344993. The next prime is 12215345017. The reversal of 12215345010 is 1054351221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12215345017) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 149919 + ... + 216578.

It is an arithmetic number, because the mean of its divisors is an integer number (504667746).

Almost surely, 2^12215345010 is an apocalyptic number.

12215345010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12215345010 is an abundant number, since it is smaller than the sum of its proper divisors (20083390734).

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

12215345010 is a wasteful number, since it uses less digits than its factorization.

12215345010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366619.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 12215345010 its reverse (1054351221), we get a palindrome (13269696231).

The spelling of 12215345010 in words is "twelve billion, two hundred fifteen million, three hundred forty-five thousand, ten".