121651332 has 24 divisors (see below), whose sum is σ = 309658272. Its totient is φ = 36864000.

The previous prime is 121651331. The next prime is 121651349. The reversal of 121651332 is 233156121.

It is not an unprimeable number, because it can be changed into a prime (121651331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460669 + ... + 460932.

It is an arithmetic number, because the mean of its divisors is an integer number (12902428).

Almost surely, 2^121651332 is an apocalyptic number.

121651332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121651332 is an abundant number, since it is smaller than the sum of its proper divisors (188006940).

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

121651332 is a wasteful number, since it uses less digits than its factorization.

121651332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921619 (or 921617 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 121651332 is about 11029.5662652708. The cubic root of 121651332 is about 495.4946346343.

The spelling of 121651332 in words is "one hundred twenty-one million, six hundred fifty-one thousand, three hundred thirty-two".