1001224501 has 2 divisors, whose sum is σ = 1001224502. Its totient is φ = 1001224500.

The previous prime is 1001224493. The next prime is 1001224517. The reversal of 1001224501 is 1054221001.

It is an a-pointer prime, because the next prime (1001224517) can be obtained adding 1001224501 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 814246225 + 186978276 = 28535^2 + 13674^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001224501 - 2³ = 1001224493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001224561) 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 as a sum of consecutive naturals, namely, 500612250 + 500612251.

It is an arithmetic number, because the mean of its divisors is an integer number (500612251).

Almost surely, 2^1001224501 is an apocalyptic number.

It is an amenable number.

1001224501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001224501 is an equidigital number, since it uses as much as digits as its factorization.

1001224501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1001224501 is about 31642.1317391860. The cubic root of 1001224501 is about 1000.4080005129.

Adding to 1001224501 its reverse (1054221001), we get a palindrome (2055445502).

The spelling of 1001224501 in words is "one billion, one million, two hundred twenty-four thousand, five hundred one".