121132868 has 6 divisors (see below), whose sum is σ = 211982526. Its totient is φ = 60566432.

The previous prime is 121132867. The next prime is 121132897. The reversal of 121132868 is 868231121.

It can be written as a sum of positive squares in only one way, i.e., 70694464 + 50438404 = 8408^2 + 7102^2 .

It is not an unprimeable number, because it can be changed into a prime (121132861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15141605 + ... + 15141612.

It is an arithmetic number, because the mean of its divisors is an integer number (35330421).

Almost surely, 2^121132868 is an apocalyptic number.

It is an amenable number.

121132868 is a deficient number, since it is larger than the sum of its proper divisors (90849658).

121132868 is a wasteful number, since it uses less digits than its factorization.

121132868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30283221 (or 30283219 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 121132868 is about 11006.0377975001. The cubic root of 121132868 is about 494.7897185255.

Adding to 121132868 its reverse (868231121), we get a palindrome (989363989).

The spelling of 121132868 in words is "one hundred twenty-one million, one hundred thirty-two thousand, eight hundred sixty-eight".