12002132101 has 4 divisors (see below), whose sum is σ = 12003467500. Its totient is φ = 12000796704.

The previous prime is 12002132063. The next prime is 12002132161. The reversal of 12002132101 is 10123120021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9426468100 + 2575664001 = 97090^2 + 50751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12002132101 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 (12002132161) 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, 654126 + ... + 672223.

It is an arithmetic number, because the mean of its divisors is an integer number (3000866875).

Almost surely, 2^12002132101 is an apocalyptic number.

It is an amenable number.

12002132101 is a deficient number, since it is larger than the sum of its proper divisors (1335399).

12002132101 is an equidigital number, since it uses as much as digits as its factorization.

12002132101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335398.

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

Adding to 12002132101 its reverse (10123120021), we get a palindrome (22125252122).

The spelling of 12002132101 in words is "twelve billion, two million, one hundred thirty-two thousand, one hundred one".