12100202321 has 4 divisors (see below), whose sum is σ = 12213288432. Its totient is φ = 11987116212.

The previous prime is 12100202297. The next prime is 12100202339. The reversal of 12100202321 is 12320200121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12100202321 - 2¹⁰ = 12100201297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12100202296 and 12100202305.

It is not an unprimeable number, because it can be changed into a prime (12100208321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56542895 + ... + 56543108.

It is an arithmetic number, because the mean of its divisors is an integer number (3053322108).

Almost surely, 2^12100202321 is an apocalyptic number.

It is an amenable number.

12100202321 is a deficient number, since it is larger than the sum of its proper divisors (113086111).

12100202321 is a wasteful number, since it uses less digits than its factorization.

12100202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113086110.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12100202321 its reverse (12320200121), we get a palindrome (24420402442).

The spelling of 12100202321 in words is "twelve billion, one hundred million, two hundred two thousand, three hundred twenty-one".