120211099966 has 8 divisors (see below), whose sum is σ = 184153174560. Its totient is φ = 58826708448.

The previous prime is 120211099951. The next prime is 120211099969. The reversal of 120211099966 is 669990112021.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211099969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639420651 + ... + 639420838.

It is an arithmetic number, because the mean of its divisors is an integer number (23019146820).

Almost surely, 2^120211099966 is an apocalyptic number.

120211099966 is a deficient number, since it is larger than the sum of its proper divisors (63942074594).

120211099966 is a wasteful number, since it uses less digits than its factorization.

120211099966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278841538.

The product of its (nonzero) digits is 104976, while the sum is 46.

The spelling of 120211099966 in words is "one hundred twenty billion, two hundred eleven million, ninety-nine thousand, nine hundred sixty-six".