2200240621 has 4 divisors (see below), whose sum is σ = 2222923612. Its totient is φ = 2177557632.

The previous prime is 2200240619. The next prime is 2200240633. The reversal of 2200240621 is 1260420022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 629307396 + 1570933225 = 25086^2 + 39635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2200240621 - 2¹ = 2200240619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200241621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11341350 + ... + 11341543.

It is an arithmetic number, because the mean of its divisors is an integer number (555730903).

Almost surely, 2^2200240621 is an apocalyptic number.

It is an amenable number.

2200240621 is a deficient number, since it is larger than the sum of its proper divisors (22682991).

2200240621 is an equidigital number, since it uses as much as digits as its factorization.

2200240621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22682990.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2200240621 is about 46906.7225565803. The cubic root of 2200240621 is about 1300.6388617311.

Adding to 2200240621 its reverse (1260420022), we get a palindrome (3460660643).

The spelling of 2200240621 in words is "two billion, two hundred million, two hundred forty thousand, six hundred twenty-one".