121332 has 12 divisors (see below), whose sum is σ = 283136. Its totient is φ = 40440.

The previous prime is 121327. The next prime is 121333. The reversal of 121332 is 233121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 10111 = 121332 / (1 + 2 + 1 + 3 + 3 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121333) by changing a digit.

121332 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5044 + ... + 5067.

2¹²¹³³² is an apocalyptic number.

121332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121332 is an abundant number, since it is smaller than the sum of its proper divisors (161804).

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

121332 is a wasteful number, since it uses less digits than its factorization.

121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118 (or 10116 counting only the distinct ones).

The product of its digits is 36, while the sum is 12.

The square root of 121332 is about 348.3274321669. The cubic root of 121332 is about 49.5060700647.

Adding to 121332 its reverse (233121), we get a palindrome (354453).

The spelling of 121332 in words is "one hundred twenty-one thousand, three hundred thirty-two".