12012202110021 has 8 divisors (see below), whose sum is σ = 16019010607200. Its totient is φ = 8006764176432.

The previous prime is 12012202109983. The next prime is 12012202110031. The reversal of 12012202110021 is 12001120221021.

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

It is not a de Polignac number, because 12012202110021 - 2²⁵ = 12012168555589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012202110031) 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, 342620446 + ... + 342655503.

It is an arithmetic number, because the mean of its divisors is an integer number (2002376325900).

Almost surely, 2^{12012202110021} is an apocalyptic number.

It is an amenable number.

12012202110021 is a deficient number, since it is larger than the sum of its proper divisors (4006808497179).

12012202110021 is an equidigital number, since it uses as much as digits as its factorization.

12012202110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685281795.

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

Adding to 12012202110021 its reverse (12001120221021), we get a palindrome (24013322331042).

The spelling of 12012202110021 in words is "twelve trillion, twelve billion, two hundred two million, one hundred ten thousand, twenty-one".