102002222 has 48 divisors (see below), whose sum is σ = 193914000. Its totient is φ = 39965184.

The previous prime is 102002191. The next prime is 102002249. The reversal of 102002222 is 222200201.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 53054 + ... + 54942.

It is an arithmetic number, because the mean of its divisors is an integer number (4039875).

Almost surely, 2^102002222 is an apocalyptic number.

102002222 is a deficient number, since it is larger than the sum of its proper divisors (91911778).

102002222 is a wasteful number, since it uses less digits than its factorization.

102002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1946 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 102002222 is about 10099.6149431550. The cubic root of 102002222 is about 467.2362655934.

Adding to 102002222 its reverse (222200201), we get a palindrome (324202423).

The spelling of 102002222 in words is "one hundred two million, two thousand, two hundred twenty-two".