2223321021 has 8 divisors (see below), whose sum is σ = 3293808960. Its totient is φ = 1482213996.

The previous prime is 2223321019. The next prime is 2223321049. The reversal of 2223321021 is 1201233222.

2223321021 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2223321021 - 2¹ = 2223321019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2223320985 and 2223321003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223321011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41172585 + ... + 41172638.

It is an arithmetic number, because the mean of its divisors is an integer number (411726120).

Almost surely, 2^2223321021 is an apocalyptic number.

It is an amenable number.

2223321021 is a deficient number, since it is larger than the sum of its proper divisors (1070487939).

2223321021 is an equidigital number, since it uses as much as digits as its factorization.

2223321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82345232 (or 82345226 counting only the distinct ones).

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

The square root of 2223321021 is about 47152.1051597911. The cubic root of 2223321021 is about 1305.1709275384.

Adding to 2223321021 its reverse (1201233222), we get a palindrome (3424554243).

The spelling of 2223321021 in words is "two billion, two hundred twenty-three million, three hundred twenty-one thousand, twenty-one".