121210168 has 16 divisors (see below), whose sum is σ = 229824000. Its totient is φ = 59923776.

The previous prime is 121210157. The next prime is 121210181. The reversal of 121210168 is 861012121.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 84408 + ... + 85831.

It is an arithmetic number, because the mean of its divisors is an integer number (14364000).

Almost surely, 2^121210168 is an apocalyptic number.

It is an amenable number.

121210168 is a deficient number, since it is larger than the sum of its proper divisors (108613832).

121210168 is a wasteful number, since it uses less digits than its factorization.

121210168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170334 (or 170330 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 121210168 is about 11009.5489462557. The cubic root of 121210168 is about 494.8949448857.

Adding to 121210168 its reverse (861012121), we get a palindrome (982222289).

The spelling of 121210168 in words is "one hundred twenty-one million, two hundred ten thousand, one hundred sixty-eight".