12121021022001 has 8 divisors (see below), whose sum is σ = 16169373944544. Its totient is φ = 8076674390400.

The previous prime is 12121021021939. The next prime is 12121021022003. The reversal of 12121021022001 is 10022012012121.

12121021022001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12121021022001 - 2²⁹ = 12120484151089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121021022003) 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, 1001565675 + ... + 1001577776.

It is an arithmetic number, because the mean of its divisors is an integer number (2021171743068).

Almost surely, 2^{12121021022001} is an apocalyptic number.

It is an amenable number.

12121021022001 is a deficient number, since it is larger than the sum of its proper divisors (4048352922543).

12121021022001 is a wasteful number, since it uses less digits than its factorization.

12121021022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003145471.

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

Adding to 12121021022001 its reverse (10022012012121), we get a palindrome (22143033034122).

The spelling of 12121021022001 in words is "twelve trillion, one hundred twenty-one billion, twenty-one million, twenty-two thousand, one".