122105250 has 48 divisors (see below), whose sum is σ = 330178680. Its totient is φ = 32560800.

The previous prime is 122105227. The next prime is 122105299. The reversal of 122105250 is 52501221.

It can be written as a sum of positive squares in 4 ways, for example, as 63536841 + 58568409 = 7971^2 + 7653^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24885 + ... + 29384.

Almost surely, 2^122105250 is an apocalyptic number.

122105250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122105250 is an abundant number, since it is smaller than the sum of its proper divisors (208073430).

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

122105250 is a wasteful number, since it uses less digits than its factorization.

122105250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54292 (or 54279 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 122105250 is about 11050.1244336885. The cubic root of 122105250 is about 496.1101499425.

Adding to 122105250 its reverse (52501221), we get a palindrome (174606471).

The spelling of 122105250 in words is "one hundred twenty-two million, one hundred five thousand, two hundred fifty".