12232203021 has 24 divisors (see below), whose sum is σ = 18782843040. Its totient is φ = 7649100000.

The previous prime is 12232203019. The next prime is 12232203023. The reversal of 12232203021 is 12030223221.

It is an interprime number because it is at equal distance from previous prime (12232203019) and next prime (12232203023).

It is not a de Polignac number, because 12232203021 - 2¹ = 12232203019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12232202985 and 12232203003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232203023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336855 + ... + 371396.

It is an arithmetic number, because the mean of its divisors is an integer number (782618460).

Almost surely, 2^12232203021 is an apocalyptic number.

It is an amenable number.

12232203021 is a deficient number, since it is larger than the sum of its proper divisors (6550640019).

12232203021 is a wasteful number, since it uses less digits than its factorization.

12232203021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708377 (or 708374 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12232203021 its reverse (12030223221), we get a palindrome (24262426242).

The spelling of 12232203021 in words is "twelve billion, two hundred thirty-two million, two hundred three thousand, twenty-one".