121984066 has 24 divisors (see below), whose sum is σ = 195041520. Its totient is φ = 57205656.

The previous prime is 121984001. The next prime is 121984073. The reversal of 121984066 is 660489121.

It is a happy number.

It is a super-2 number, since 2×121984066² = 29760224715784712, which contains 22 as substring.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76465 + ... + 78043.

It is an arithmetic number, because the mean of its divisors is an integer number (8126730).

Almost surely, 2^121984066 is an apocalyptic number.

121984066 is a deficient number, since it is larger than the sum of its proper divisors (73057454).

121984066 is a wasteful number, since it uses less digits than its factorization.

121984066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726 (or 1707 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 121984066 is about 11044.6396953454. The cubic root of 121984066 is about 495.9459732387.

The spelling of 121984066 in words is "one hundred twenty-one million, nine hundred eighty-four thousand, sixty-six".