121210066 has 8 divisors (see below), whose sum is σ = 182283660. Its totient is φ = 60448848.

The previous prime is 121210049. The next prime is 121210081. The reversal of 121210066 is 660012121.

It can be written as a sum of positive squares in 2 ways, for example, as 119574225 + 1635841 = 10935^2 + 1279^2 .

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, 77121 + ... + 78676.

Almost surely, 2^121210066 is an apocalyptic number.

121210066 is a deficient number, since it is larger than the sum of its proper divisors (61073594).

121210066 is a wasteful number, since it uses less digits than its factorization.

121210066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156188.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 121210066 is about 11009.5443139124. The cubic root of 121210066 is about 494.8948060654.

Adding to 121210066 its reverse (660012121), we get a palindrome (781222187).

The spelling of 121210066 in words is "one hundred twenty-one million, two hundred ten thousand, sixty-six".