121235668 has 24 divisors (see below), whose sum is σ = 228533760. Its totient is φ = 56110560.

The previous prime is 121235633. The next prime is 121235669. The reversal of 121235668 is 866532121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121235669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18403 + ... + 24106.

It is an arithmetic number, because the mean of its divisors is an integer number (9522240).

Almost surely, 2^121235668 is an apocalyptic number.

It is an amenable number.

121235668 is a deficient number, since it is larger than the sum of its proper divisors (107298092).

121235668 is a wasteful number, since it uses less digits than its factorization.

121235668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42567 (or 42565 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 121235668 is about 11010.7069709442. The cubic root of 121235668 is about 494.9296475195.

Adding to 121235668 its reverse (866532121), we get a palindrome (987767789).

The spelling of 121235668 in words is "one hundred twenty-one million, two hundred thirty-five thousand, six hundred sixty-eight".