12021213010231 has 16 divisors (see below), whose sum is σ = 12184445952000. Its totient is φ = 11859242155488.

The previous prime is 12021213010199. The next prime is 12021213010253. The reversal of 12021213010231 is 13201031212021.

It is a cyclic number.

It is not a de Polignac number, because 12021213010231 - 2⁵ = 12021213010199 is a prime.

It is a super-2 number, since 2×12021213010231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12021213010199 and 12021213010208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021213010271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15534216 + ... + 16289698.

It is an arithmetic number, because the mean of its divisors is an integer number (761527872000).

Almost surely, 2^{12021213010231} is an apocalyptic number.

12021213010231 is a deficient number, since it is larger than the sum of its proper divisors (163232941769).

12021213010231 is a wasteful number, since it uses less digits than its factorization.

12021213010231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756318.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12021213010231 its reverse (13201031212021), we get a palindrome (25222244222252).

The spelling of 12021213010231 in words is "twelve trillion, twenty-one billion, two hundred thirteen million, ten thousand, two hundred thirty-one".