2221325541 has 24 divisors (see below), whose sum is σ = 3256897176. Its totient is φ = 1458639360.

The previous prime is 2221325531. The next prime is 2221325551. The reversal of 2221325541 is 1455231222.

2221325541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2221325531) and next prime (2221325551).

It can be written as a sum of positive squares in 4 ways, for example, as 327248100 + 1894077441 = 18090^2 + 43521^2 .

It is not a de Polignac number, because 2221325541 - 2⁷ = 2221325413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221325531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 616441 + ... + 620033.

It is an arithmetic number, because the mean of its divisors is an integer number (135704049).

Almost surely, 2^2221325541 is an apocalyptic number.

It is an amenable number.

2221325541 is a deficient number, since it is larger than the sum of its proper divisors (1035571635).

2221325541 is a wasteful number, since it uses less digits than its factorization.

2221325541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4613 (or 4610 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2221325541 is about 47130.9403789061. The cubic root of 2221325541 is about 1304.7803373615.

Adding to 2221325541 its reverse (1455231222), we get a palindrome (3676556763).

The spelling of 2221325541 in words is "two billion, two hundred twenty-one million, three hundred twenty-five thousand, five hundred forty-one".