12223010021 has 16 divisors (see below), whose sum is σ = 12783792384. Its totient is φ = 11675215104.

The previous prime is 12223010017. The next prime is 12223010053. The reversal of 12223010021 is 12001032221.

It is a happy number.

It is not a de Polignac number, because 12223010021 - 2² = 12223010017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12223009978 and 12223010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223010621) 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, 4640921 + ... + 4643553.

It is an arithmetic number, because the mean of its divisors is an integer number (798987024).

Almost surely, 2^12223010021 is an apocalyptic number.

It is an amenable number.

12223010021 is a deficient number, since it is larger than the sum of its proper divisors (560782363).

12223010021 is a wasteful number, since it uses less digits than its factorization.

12223010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5020.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12223010021 its reverse (12001032221), we get a palindrome (24224042242).

The spelling of 12223010021 in words is "twelve billion, two hundred twenty-three million, ten thousand, twenty-one".