512002221 has 8 divisors (see below), whose sum is σ = 706210080. Its totient is φ = 329564592.

The previous prime is 512002213. The next prime is 512002259. The reversal of 512002221 is 122200215.

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

It is not a de Polignac number, because 512002221 - 2³ = 512002213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 512002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512002201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2942455 + ... + 2942628.

It is an arithmetic number, because the mean of its divisors is an integer number (88276260).

Almost surely, 2^512002221 is an apocalyptic number.

It is an amenable number.

512002221 is a deficient number, since it is larger than the sum of its proper divisors (194207859).

512002221 is a wasteful number, since it uses less digits than its factorization.

512002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885115.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 512002221 is about 22627.4660755463. The cubic root of 512002221 is about 800.0011567692.

Adding to 512002221 its reverse (122200215), we get a palindrome (634202436).

The spelling of 512002221 in words is "five hundred twelve million, two thousand, two hundred twenty-one".