12122102321 has 32 divisors (see below), whose sum is σ = 14582550528. Its totient is φ = 9852131520.

The previous prime is 12122102309. The next prime is 12122102371. The reversal of 12122102321 is 12320122121.

It is not a de Polignac number, because 12122102321 - 2¹⁸ = 12121840177 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122102321.

It is not an unprimeable number, because it can be changed into a prime (12122102371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14657510 + ... + 14658336.

It is an arithmetic number, because the mean of its divisors is an integer number (455704704).

Almost surely, 2^12122102321 is an apocalyptic number.

It is an amenable number.

12122102321 is a deficient number, since it is larger than the sum of its proper divisors (2460448207).

12122102321 is a wasteful number, since it uses less digits than its factorization.

12122102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12122102321 its reverse (12320122121), we get a palindrome (24442224442).

The spelling of 12122102321 in words is "twelve billion, one hundred twenty-two million, one hundred two thousand, three hundred twenty-one".