121283666 has 8 divisors (see below), whose sum is σ = 207914880. Its totient is φ = 51978708.

The previous prime is 121283651. The next prime is 121283671. The reversal of 121283666 is 666382121.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4331546 + ... + 4331573.

It is an arithmetic number, because the mean of its divisors is an integer number (25989360).

Almost surely, 2^121283666 is an apocalyptic number.

121283666 is a deficient number, since it is larger than the sum of its proper divisors (86631214).

121283666 is an equidigital number, since it uses as much as digits as its factorization.

121283666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663128.

The product of its digits is 20736, while the sum is 35.

The square root of 121283666 is about 11012.8863609864. The cubic root of 121283666 is about 494.9949542049.

The spelling of 121283666 in words is "one hundred twenty-one million, two hundred eighty-three thousand, six hundred sixty-six".