8218220502 has 8 divisors (see below), whose sum is σ = 16436441016. Its totient is φ = 2739406832.

The previous prime is 8218220411. The next prime is 8218220503. The reversal of 8218220502 is 2050228128.

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

8218220502 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 8218220502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8218220503) 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 3 ways as a sum of consecutive naturals, for example, 684851703 + ... + 684851714.

It is an arithmetic number, because the mean of its divisors is an integer number (2054555127).

Almost surely, 2^8218220502 is an apocalyptic number.

8218220502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8218220502 is a wasteful number, since it uses less digits than its factorization.

8218220502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369703422.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 8218220502 is about 90654.4014485783. The cubic root of 8218220502 is about 2018.0221550011.

The spelling of 8218220502 in words is "eight billion, two hundred eighteen million, two hundred twenty thousand, five hundred two".