2221233643 has 2 divisors, whose sum is σ = 2221233644. Its totient is φ = 2221233642.

The previous prime is 2221233631. The next prime is 2221233697. The reversal of 2221233643 is 3463321222.

2221233643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2221233643 - 2⁵ = 2221233611 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221233613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110616821 + 1110616822.

It is an arithmetic number, because the mean of its divisors is an integer number (1110616822).

Almost surely, 2^2221233643 is an apocalyptic number.

2221233643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221233643 is an equidigital number, since it uses as much as digits as its factorization.

2221233643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 28.

The square root of 2221233643 is about 47129.9654466243. The cubic root of 2221233643 is about 1304.7623438475.

Adding to 2221233643 its reverse (3463321222), we get a palindrome (5684554865).

It can be divided in two parts, 22212 and 33643, that added together give a palindrome (55855).

The spelling of 2221233643 in words is "two billion, two hundred twenty-one million, two hundred thirty-three thousand, six hundred forty-three".