121881332 has 12 divisors (see below), whose sum is σ = 213375876. Its totient is φ = 60916800.

The previous prime is 121881323. The next prime is 121881337. The reversal of 121881332 is 233188121.

It can be written as a sum of positive squares in 2 ways, for example, as 35688676 + 86192656 = 5974^2 + 9284^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 121881295 and 121881304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121881337) 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, 10688 + ... + 18920.

It is an arithmetic number, because the mean of its divisors is an integer number (17781323).

Almost surely, 2^121881332 is an apocalyptic number.

It is an amenable number.

121881332 is a deficient number, since it is larger than the sum of its proper divisors (91494544).

121881332 is a wasteful number, since it uses less digits than its factorization.

121881332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11938 (or 11936 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 121881332 is about 11039.9878623122. The cubic root of 121881332 is about 495.8067068974.

The spelling of 121881332 in words is "one hundred twenty-one million, eight hundred eighty-one thousand, three hundred thirty-two".