12230031021 has 16 divisors (see below), whose sum is σ = 17637768960. Its totient is φ = 7493302080.

The previous prime is 12230031007. The next prime is 12230031029. The reversal of 12230031021 is 12013003221.

It is not a de Polignac number, because 12230031021 - 2⁶ = 12230030957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230031029) 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, 675765 + ... + 693626.

It is an arithmetic number, because the mean of its divisors is an integer number (1102360560).

Almost surely, 2^12230031021 is an apocalyptic number.

It is an amenable number.

12230031021 is a deficient number, since it is larger than the sum of its proper divisors (5407737939).

12230031021 is a wasteful number, since it uses less digits than its factorization.

12230031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369636.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12230031021 its reverse (12013003221), we get a palindrome (24243034242).

The spelling of 12230031021 in words is "twelve billion, two hundred thirty million, thirty-one thousand, twenty-one".