122187252 has 144 divisors (see below), whose sum is σ = 340820480. Its totient is φ = 33929280.

The previous prime is 122187229. The next prime is 122187253. The reversal of 122187252 is 252781221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122187253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1186233 + ... + 1186335.

Almost surely, 2^122187252 is an apocalyptic number.

122187252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122187252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170410240).

122187252 is an abundant number, since it is smaller than the sum of its proper divisors (218633228).

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

122187252 is a wasteful number, since it uses less digits than its factorization.

122187252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 181 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 122187252 is about 11053.8342668958. The cubic root of 122187252 is about 496.2211823537.

The spelling of 122187252 in words is "one hundred twenty-two million, one hundred eighty-seven thousand, two hundred fifty-two".