2200320021 has 4 divisors (see below), whose sum is σ = 2933760032. Its totient is φ = 1466880012.

The previous prime is 2200320011. The next prime is 2200320043. The reversal of 2200320021 is 1200230022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2200320021 - 2⁷ = 2200319893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200319979 and 2200320006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200320011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366720001 + ... + 366720006.

It is an arithmetic number, because the mean of its divisors is an integer number (733440008).

Almost surely, 2^2200320021 is an apocalyptic number.

It is an amenable number.

2200320021 is a deficient number, since it is larger than the sum of its proper divisors (733440011).

2200320021 is an equidigital number, since it uses as much as digits as its factorization.

2200320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733440010.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2200320021 is about 46907.5689095054. The cubic root of 2200320021 is about 1300.6545069113.

Adding to 2200320021 its reverse (1200230022), we get a palindrome (3400550043).

It can be divided in two parts, 22003 and 20021, that added together give a palindrome (42024).

The spelling of 2200320021 in words is "two billion, two hundred million, three hundred twenty thousand, twenty-one".