1010240221 has 2 divisors, whose sum is σ = 1010240222. Its totient is φ = 1010240220.

The previous prime is 1010240213. The next prime is 1010240239. The reversal of 1010240221 is 1220420101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 961868196 + 48372025 = 31014^2 + 6955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010240221 - 2³ = 1010240213 is a prime.

It is a super-2 number, since 2×1010240221² = 2041170608252257682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010240251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505120110 + 505120111.

It is an arithmetic number, because the mean of its divisors is an integer number (505120111).

Almost surely, 2^1010240221 is an apocalyptic number.

It is an amenable number.

1010240221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010240221 is an equidigital number, since it uses as much as digits as its factorization.

1010240221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1010240221 is about 31784.2763170723. The cubic root of 1010240221 is about 1003.4018214882.

Adding to 1010240221 its reverse (1220420101), we get a palindrome (2230660322).

The spelling of 1010240221 in words is "one billion, ten million, two hundred forty thousand, two hundred twenty-one".