2221533441 has 24 divisors (see below), whose sum is σ = 3275326080. Its totient is φ = 1450562400.

The previous prime is 2221533401. The next prime is 2221533449. The reversal of 2221533441 is 1443351222.

2221533441 is a `hidden beast` number, since 2 + 2 + 215 + 3 + 3 + 441 = 666.

It is not a de Polignac number, because 2221533441 - 2¹³ = 2221525249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221533449) 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, 122746 + ... + 139676.

It is an arithmetic number, because the mean of its divisors is an integer number (136471920).

Almost surely, 2^2221533441 is an apocalyptic number.

It is an amenable number.

2221533441 is a deficient number, since it is larger than the sum of its proper divisors (1053792639).

2221533441 is a wasteful number, since it uses less digits than its factorization.

2221533441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17237 (or 17234 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 2221533441 is about 47133.1458848229. The cubic root of 2221533441 is about 1304.8210420916.

Adding to 2221533441 its reverse (1443351222), we get a palindrome (3664884663).

The spelling of 2221533441 in words is "two billion, two hundred twenty-one million, five hundred thirty-three thousand, four hundred forty-one".