12030332220021 has 16 divisors (see below), whose sum is σ = 16234783379136. Its totient is φ = 7923064152576.

The previous prime is 12030332220013. The next prime is 12030332220029. The reversal of 12030332220021 is 12002223303021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12030332220013) and next prime (12030332220029).

It is not a de Polignac number, because 12030332220021 - 2³ = 12030332220013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12030332220021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030332220029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2150491 + ... + 5355863.

It is an arithmetic number, because the mean of its divisors is an integer number (1014673961196).

Almost surely, 2^{12030332220021} is an apocalyptic number.

It is an amenable number.

12030332220021 is a deficient number, since it is larger than the sum of its proper divisors (4204451159115).

12030332220021 is a wasteful number, since it uses less digits than its factorization.

12030332220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220532.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12030332220021 its reverse (12002223303021), we get a palindrome (24032555523042).

The spelling of 12030332220021 in words is "twelve trillion, thirty billion, three hundred thirty-two million, two hundred twenty thousand, twenty-one".