2204070021 has 24 divisors (see below), whose sum is σ = 3357550560. Its totient is φ = 1444465872.

The previous prime is 2204070019. The next prime is 2204070067. The reversal of 2204070021 is 1200704022.

It is not a de Polignac number, because 2204070021 - 2¹ = 2204070019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2204069976 and 2204070003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204050021) 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, 62530 + ... + 91203.

It is an arithmetic number, because the mean of its divisors is an integer number (139897940).

Almost surely, 2^2204070021 is an apocalyptic number.

It is an amenable number.

2204070021 is a deficient number, since it is larger than the sum of its proper divisors (1153480539).

2204070021 is an equidigital number, since it uses as much as digits as its factorization.

2204070021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153807 (or 153795 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 2204070021 is about 46947.5241200215. The cubic root of 2204070021 is about 1301.3929882984.

Adding to 2204070021 its reverse (1200704022), we get a palindrome (3404774043).

The spelling of 2204070021 in words is "two billion, two hundred four million, seventy thousand, twenty-one".