102122250 has 32 divisors (see below), whose sum is σ = 254899008. Its totient is φ = 27232400.

The previous prime is 102122243. The next prime is 102122299. The reversal of 102122250 is 52221201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67332 + ... + 68831.

It is an arithmetic number, because the mean of its divisors is an integer number (7965594).

Almost surely, 2^102122250 is an apocalyptic number.

102122250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102122250 is an abundant number, since it is smaller than the sum of its proper divisors (152776758).

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

102122250 is a wasteful number, since it uses less digits than its factorization.

102122250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136183 (or 136173 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 102122250 is about 10105.5554028465. Note that the first 3 decimals coincide. The cubic root of 102122250 is about 467.4194624244.

Adding to 102122250 its reverse (52221201), we get a palindrome (154343451).

The spelling of 102122250 in words is "one hundred two million, one hundred twenty-two thousand, two hundred fifty".