121201768 has 8 divisors (see below), whose sum is σ = 227253330. Its totient is φ = 60600880.

The previous prime is 121201733. The next prime is 121201771. The reversal of 121201768 is 867102121.

It can be written as a sum of positive squares in only one way, i.e., 120165444 + 1036324 = 10962^2 + 1018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 7575103 + ... + 7575118.

Almost surely, 2^121201768 is an apocalyptic number.

It is an amenable number.

121201768 is a deficient number, since it is larger than the sum of its proper divisors (106051562).

121201768 is a wasteful number, since it uses less digits than its factorization.

121201768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15150227 (or 15150223 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 121201768 is about 11009.1674526278. The cubic root of 121201768 is about 494.8835123641.

Adding to 121201768 its reverse (867102121), we get a palindrome (988303889).

The spelling of 121201768 in words is "one hundred twenty-one million, two hundred one thousand, seven hundred sixty-eight".