121133232 has 200 divisors, whose sum is σ = 397005840. Its totient is φ = 35320320.

The previous prime is 121133231. The next prime is 121133237. The reversal of 121133232 is 232331121.

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

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is not an unprimeable number, because it can be changed into a prime (121133231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 413278 + ... + 413570.

Almost surely, 2^121133232 is an apocalyptic number.

121133232 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 121133232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198502920).

121133232 is an abundant number, since it is smaller than the sum of its proper divisors (275872608).

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

121133232 is a wasteful number, since it uses less digits than its factorization.

121133232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 338 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 121133232 is about 11006.0543338655. The cubic root of 121133232 is about 494.7902141336.

Adding to 121133232 its reverse (232331121), we get a palindrome (353464353).

It can be divided in two parts, 1211 and 33232, that added together give a palindrome (34443).

The spelling of 121133232 in words is "one hundred twenty-one million, one hundred thirty-three thousand, two hundred thirty-two".