102220868 has 12 divisors (see below), whose sum is σ = 179220972. Its totient is φ = 51014880.

The previous prime is 102220843. The next prime is 102220889. The reversal of 102220868 is 868022201.

102220868 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 14760964 + 87459904 = 3842^2 + 9352^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102220868.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21455 + ... + 25782.

It is an arithmetic number, because the mean of its divisors is an integer number (14935081).

Almost surely, 2^102220868 is an apocalyptic number.

It is an amenable number.

102220868 is a deficient number, since it is larger than the sum of its proper divisors (77000104).

102220868 is a wasteful number, since it uses less digits than its factorization.

102220868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47782 (or 47780 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 102220868 is about 10110.4336207702. The cubic root of 102220868 is about 467.5698741203.

The spelling of 102220868 in words is "one hundred two million, two hundred twenty thousand, eight hundred sixty-eight".