12102012012021 has 8 divisors (see below), whose sum is σ = 16136034592320. Its totient is φ = 8067998719872.

The previous prime is 12102012011977. The next prime is 12102012012023. The reversal of 12102012012021 is 12021021020121.

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

It is not a de Polignac number, because 12102012012021 - 2³⁵ = 12067652273653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102012012023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1726656 + ... + 5213958.

It is an arithmetic number, because the mean of its divisors is an integer number (2017004324040).

Almost surely, 2^{12102012012021} is an apocalyptic number.

It is an amenable number.

12102012012021 is a deficient number, since it is larger than the sum of its proper divisors (4034022580299).

12102012012021 is a wasteful number, since it uses less digits than its factorization.

12102012012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644075.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12102012012021 its reverse (12021021020121), we get a palindrome (24123033032142).

The spelling of 12102012012021 in words is "twelve trillion, one hundred two billion, twelve million, twelve thousand, twenty-one".