12231030030021 has 80 divisors (see below), whose sum is σ = 20151544015680. Its totient is φ = 7331221509120.

The previous prime is 12231030029971. The next prime is 12231030030029. The reversal of 12231030030021 is 12003003013221.

12231030030021 is a `hidden beast` number, since 1 + 2 + 2 + 310 + 30 + 0 + 300 + 21 = 666.

It is not a de Polignac number, because 12231030030021 - 2¹⁴ = 12231030013637 is a prime.

It is a super-2 number, since 2×12231030030021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12231030029976 and 12231030030003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231030030029) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 126048495 + ... + 126145491.

It is an arithmetic number, because the mean of its divisors is an integer number (251894300196).

Almost surely, 2^{12231030030021} is an apocalyptic number.

12231030030021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12231030030021 is a deficient number, since it is larger than the sum of its proper divisors (7920513985659).

12231030030021 is a wasteful number, since it uses less digits than its factorization.

12231030030021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98576 (or 98567 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12231030030021 its reverse (12003003013221), we get a palindrome (24234033043242).

The spelling of 12231030030021 in words is "twelve trillion, two hundred thirty-one billion, thirty million, thirty thousand, twenty-one".