12012021102321 has 12 divisors (see below), whose sum is σ = 17352267916672. Its totient is φ = 8007289097976.

The previous prime is 12012021102307. The next prime is 12012021102329. The reversal of 12012021102321 is 12320112021021.

12012021102321 is a `hidden beast` number, since 1 + 201 + 20 + 21 + 102 + 321 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-12012021102321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012021102294 and 12012021102303.

It is not an unprimeable number, because it can be changed into a prime (12012021102329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60309241 + ... + 60508086.

Almost surely, 2^{12012021102321} is an apocalyptic number.

It is an amenable number.

12012021102321 is a deficient number, since it is larger than the sum of its proper divisors (5340246814351).

12012021102321 is a wasteful number, since it uses less digits than its factorization.

12012021102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120828380 (or 120828377 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12012021102321 its reverse (12320112021021), we get a palindrome (24332133123342).

The spelling of 12012021102321 in words is "twelve trillion, twelve billion, twenty-one million, one hundred two thousand, three hundred twenty-one".