102220500 has 48 divisors (see below), whose sum is σ = 297670464. Its totient is φ = 27258400.

The previous prime is 102220499. The next prime is 102220511. The reversal of 102220500 is 5022201.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 15 ways as a sum of consecutive naturals, for example, 32574 + ... + 35573.

It is an arithmetic number, because the mean of its divisors is an integer number (6201468).

Almost surely, 2^102220500 is an apocalyptic number.

102220500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102220500 is an abundant number, since it is smaller than the sum of its proper divisors (195449964).

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

102220500 is a wasteful number, since it uses less digits than its factorization.

102220500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68169 (or 68157 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 102220500 is about 10110.4154217322. The cubic root of 102220500 is about 467.5693130283.

Adding to 102220500 its reverse (5022201), we get a palindrome (107242701).

The spelling of 102220500 in words is "one hundred two million, two hundred twenty thousand, five hundred".