12030210021021 has 4 divisors (see below), whose sum is σ = 16040280028032. Its totient is φ = 8020140014012.

The previous prime is 12030210021001. The next prime is 12030210021029. The reversal of 12030210021021 is 12012001203021.

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 12030210021021 - 2¹³ = 12030210012829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030210021029) 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 3 ways as a sum of consecutive naturals, for example, 2005035003501 + ... + 2005035003506.

It is an arithmetic number, because the mean of its divisors is an integer number (4010070007008).

Almost surely, 2^{12030210021021} is an apocalyptic number.

It is an amenable number.

12030210021021 is a deficient number, since it is larger than the sum of its proper divisors (4010070007011).

12030210021021 is an equidigital number, since it uses as much as digits as its factorization.

12030210021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4010070007010.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12030210021021 its reverse (12012001203021), we get a palindrome (24042211224042).

The spelling of 12030210021021 in words is "twelve trillion, thirty billion, two hundred ten million, twenty-one thousand, twenty-one".