12201021212021 has 8 divisors (see below), whose sum is σ = 13019114200320. Its totient is φ = 11400521621472.

The previous prime is 12201021211987. The next prime is 12201021212027. The reversal of 12201021212021 is 12021212010221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201021212021 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 (12201021212027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4398348005 + ... + 4398350778.

It is an arithmetic number, because the mean of its divisors is an integer number (1627389275040).

Almost surely, 2^{12201021212021} is an apocalyptic number.

It is an amenable number.

12201021212021 is a deficient number, since it is larger than the sum of its proper divisors (818092988299).

12201021212021 is an equidigital number, since it uses as much as digits as its factorization.

12201021212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8796698875.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12201021212021 its reverse (12021212010221), we get a palindrome (24222233222242).

The spelling of 12201021212021 in words is "twelve trillion, two hundred one billion, twenty-one million, two hundred twelve thousand, twenty-one".