121121232 has 20 divisors (see below), whose sum is σ = 312896640. Its totient is φ = 40373728.

The previous prime is 121121227. The next prime is 121121233. The reversal of 121121232 is 232121121.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261632 + ... + 1261727.

It is an arithmetic number, because the mean of its divisors is an integer number (15644832).

Almost surely, 2^121121232 is an apocalyptic number.

121121232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121121232 is an abundant number, since it is smaller than the sum of its proper divisors (191775408).

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

121121232 is a wasteful number, since it uses less digits than its factorization.

121121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523370 (or 2523364 counting only the distinct ones).

The product of its digits is 48, while the sum is 15.

The square root of 121121232 is about 11005.5091658678. The cubic root of 121121232 is about 494.7738748831.

Adding to 121121232 its reverse (232121121), we get a palindrome (353242353).

The spelling of 121121232 in words is "one hundred twenty-one million, one hundred twenty-one thousand, two hundred thirty-two".