502051221 has 24 divisors (see below), whose sum is σ = 829445760. Its totient is φ = 286657056.

The previous prime is 502051217. The next prime is 502051223. The reversal of 502051221 is 122150205.

It is not a de Polignac number, because 502051221 - 2² = 502051217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 502051194 and 502051203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502051223) 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 in 23 ways as a sum of consecutive naturals, for example, 105336 + ... + 109998.

It is an arithmetic number, because the mean of its divisors is an integer number (34560240).

Almost surely, 2^502051221 is an apocalyptic number.

It is an amenable number.

502051221 is a deficient number, since it is larger than the sum of its proper divisors (327394539).

502051221 is a wasteful number, since it uses less digits than its factorization.

502051221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385 (or 6382 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 502051221 is about 22406.4995258072. The cubic root of 502051221 is about 794.7844152594.

The spelling of 502051221 in words is "five hundred two million, fifty-one thousand, two hundred twenty-one".