12210000312 has 16 divisors (see below), whose sum is σ = 30525000840. Its totient is φ = 4070000096.

The previous prime is 12210000311. The next prime is 12210000323. The reversal of 12210000312 is 21300001221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210000311) 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 3 ways as a sum of consecutive naturals, for example, 254374983 + ... + 254375030.

Almost surely, 2^12210000312 is an apocalyptic number.

12210000312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12210000312 is an abundant number, since it is smaller than the sum of its proper divisors (18315000528).

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

12210000312 is a wasteful number, since it uses less digits than its factorization.

12210000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508750022 (or 508750018 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12210000312 its reverse (21300001221), we get a palindrome (33510001533).

Subtracting 12210000312 from its reverse (21300001221), we obtain a palindrome (9090000909).

The spelling of 12210000312 in words is "twelve billion, two hundred ten million, three hundred twelve", and thus it is an aban number.