12132002120021 has 4 divisors (see below), whose sum is σ = 13865145280032. Its totient is φ = 10398858960012.

The previous prime is 12132002119997. The next prime is 12132002120023. The reversal of 12132002120021 is 12002120023121.

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 12132002120021 - 2⁶ = 12132002119957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132002120023) 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, 866571579995 + ... + 866571580008.

It is an arithmetic number, because the mean of its divisors is an integer number (3466286320008).

Almost surely, 2^{12132002120021} is an apocalyptic number.

It is an amenable number.

12132002120021 is a deficient number, since it is larger than the sum of its proper divisors (1733143160011).

12132002120021 is an equidigital number, since it uses as much as digits as its factorization.

12132002120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733143160010.

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

Adding to 12132002120021 its reverse (12002120023121), we get a palindrome (24134122143142).

The spelling of 12132002120021 in words is "twelve trillion, one hundred thirty-two billion, two million, one hundred twenty thousand, twenty-one".