12102100003021 has 8 divisors (see below), whose sum is σ = 13880191973184. Its totient is φ = 10336313168160.

The previous prime is 12102100002997. The next prime is 12102100003027. The reversal of 12102100003021 is 12030000120121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12102100003021 - 2⁵ = 12102100002989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102100002992 and 12102100003010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102100003027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3076281715 + ... + 3076285648.

It is an arithmetic number, because the mean of its divisors is an integer number (1735023996648).

Almost surely, 2^{12102100003021} is an apocalyptic number.

It is an amenable number.

12102100003021 is a deficient number, since it is larger than the sum of its proper divisors (1778091970163).

12102100003021 is an equidigital number, since it uses as much as digits as its factorization.

12102100003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6152567651.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12102100003021 its reverse (12030000120121), we get a palindrome (24132100123142).

The spelling of 12102100003021 in words is "twelve trillion, one hundred two billion, one hundred million, three thousand, twenty-one".