2200730621 has 4 divisors (see below), whose sum is σ = 2238031200. Its totient is φ = 2163430044.

The previous prime is 2200730593. The next prime is 2200730629. The reversal of 2200730621 is 1260370022.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1260370022 = 2 ⋅630185011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2200730621 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200730629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18650201 + ... + 18650318.

It is an arithmetic number, because the mean of its divisors is an integer number (559507800).

Almost surely, 2^2200730621 is an apocalyptic number.

It is an amenable number.

2200730621 is a deficient number, since it is larger than the sum of its proper divisors (37300579).

2200730621 is an equidigital number, since it uses as much as digits as its factorization.

2200730621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37300578.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 2200730621 is about 46911.9453977343. The cubic root of 2200730621 is about 1300.7354065864.

The spelling of 2200730621 in words is "two billion, two hundred million, seven hundred thirty thousand, six hundred twenty-one".