102124220 has 24 divisors (see below), whose sum is σ = 233957808. Its totient is φ = 37136000.

The previous prime is 102124201. The next prime is 102124223. The reversal of 102124220 is 22421201.

It is a junction number, because it is equal to n+sod(n) for n = 102124195 and 102124204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102124223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 231881 + ... + 232320.

It is an arithmetic number, because the mean of its divisors is an integer number (9748242).

Almost surely, 2^102124220 is an apocalyptic number.

102124220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102124220 is an abundant number, since it is smaller than the sum of its proper divisors (131833588).

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

102124220 is a wasteful number, since it uses less digits than its factorization.

102124220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464221 (or 464219 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 102124220 is about 10105.6528735159. The cubic root of 102124220 is about 467.4224680065.

Adding to 102124220 its reverse (22421201), we get a palindrome (124545421).

The spelling of 102124220 in words is "one hundred two million, one hundred twenty-four thousand, two hundred twenty".