1024522221 has 8 divisors (see below), whose sum is σ = 1446384384. Its totient is φ = 642837440.

The previous prime is 1024522207. The next prime is 1024522231. The reversal of 1024522221 is 1222254201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1024522221 - 2⁹ = 1024521709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024522231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10044285 + ... + 10044386.

It is an arithmetic number, because the mean of its divisors is an integer number (180798048).

Almost surely, 2^1024522221 is an apocalyptic number.

It is an amenable number.

1024522221 is a deficient number, since it is larger than the sum of its proper divisors (421862163).

1024522221 is a wasteful number, since it uses less digits than its factorization.

1024522221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20088691.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1024522221 is about 32008.1586630659. The cubic root of 1024522221 is about 1008.1081538257.

Adding to 1024522221 its reverse (1222254201), we get a palindrome (2246776422).

The spelling of 1024522221 in words is "one billion, twenty-four million, five hundred twenty-two thousand, two hundred twenty-one".