12210303021 has 16 divisors (see below), whose sum is σ = 18608467584. Its totient is φ = 6976456704.

The previous prime is 12210303011. The next prime is 12210303041. The reversal of 12210303021 is 12030301221.

It is not a de Polignac number, because 12210303021 - 2¹⁰ = 12210301997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210303011) 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, 164941 + ... + 227213.

It is an arithmetic number, because the mean of its divisors is an integer number (1163029224).

Almost surely, 2^12210303021 is an apocalyptic number.

It is an amenable number.

12210303021 is a deficient number, since it is larger than the sum of its proper divisors (6398164563).

12210303021 is an equidigital number, since it uses as much as digits as its factorization.

12210303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71620.

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

Adding to 12210303021 its reverse (12030301221), we get a palindrome (24240604242).

The spelling of 12210303021 in words is "twelve billion, two hundred ten million, three hundred three thousand, twenty-one".