2233506621 has 4 divisors (see below), whose sum is σ = 2978008832. Its totient is φ = 1489004412.

The previous prime is 2233506619. The next prime is 2233506641. The reversal of 2233506621 is 1266053322.

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 2233506621 - 2¹ = 2233506619 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 (2233506641) 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, 372251101 + ... + 372251106.

It is an arithmetic number, because the mean of its divisors is an integer number (744502208).

Almost surely, 2^2233506621 is an apocalyptic number.

It is an amenable number.

2233506621 is a deficient number, since it is larger than the sum of its proper divisors (744502211).

2233506621 is an equidigital number, since it uses as much as digits as its factorization.

2233506621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744502210.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 2233506621 is about 47259.9896424026. The cubic root of 2233506621 is about 1307.1609984574.

Adding to 2233506621 its reverse (1266053322), we get a palindrome (3499559943).

The spelling of 2233506621 in words is "two billion, two hundred thirty-three million, five hundred six thousand, six hundred twenty-one".