12212010321 has 64 divisors (see below), whose sum is σ = 19397554176. Its totient is φ = 6688915200.

The previous prime is 12212010319. The next prime is 12212010323. The reversal of 12212010321 is 12301021221.

It is an interprime number because it is at equal distance from previous prime (12212010319) and next prime (12212010323).

It is not a de Polignac number, because 12212010321 - 2¹ = 12212010319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12212010321.

It is not an unprimeable number, because it can be changed into a prime (12212010323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26490031 + ... + 26490491.

It is an arithmetic number, because the mean of its divisors is an integer number (303086784).

Almost surely, 2^12212010321 is an apocalyptic number.

It is an amenable number.

12212010321 is a deficient number, since it is larger than the sum of its proper divisors (7185543855).

12212010321 is a wasteful number, since it uses less digits than its factorization.

12212010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12212010321 its reverse (12301021221), we get a palindrome (24513031542).

The spelling of 12212010321 in words is "twelve billion, two hundred twelve million, ten thousand, three hundred twenty-one".