122187132 has 72 divisors (see below), whose sum is σ = 324533664. Its totient is φ = 38687616.

The previous prime is 122187113. The next prime is 122187137. The reversal of 122187132 is 231781221.

It is a junction number, because it is equal to n+sod(n) for n = 122187096 and 122187105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122187137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142818 + ... + 143670.

It is an arithmetic number, because the mean of its divisors is an integer number (4507412).

Almost surely, 2^122187132 is an apocalyptic number.

122187132 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 122187132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162266832).

122187132 is an abundant number, since it is smaller than the sum of its proper divisors (202346532).

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

122187132 is a wasteful number, since it uses less digits than its factorization.

122187132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1054 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 122187132 is about 11053.8288389137. The cubic root of 122187132 is about 496.2210199075.

The spelling of 122187132 in words is "one hundred twenty-two million, one hundred eighty-seven thousand, one hundred thirty-two".