121218886 has 8 divisors (see below), whose sum is σ = 182118384. Its totient is φ = 60512760.

The previous prime is 121218871. The next prime is 121218899. The reversal of 121218886 is 688812121.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46765 + ... + 49288.

It is an arithmetic number, because the mean of its divisors is an integer number (22764798).

Almost surely, 2^121218886 is an apocalyptic number.

121218886 is a deficient number, since it is larger than the sum of its proper divisors (60899498).

121218886 is an equidigital number, since it uses as much as digits as its factorization.

121218886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96686.

The product of its digits is 12288, while the sum is 37.

The square root of 121218886 is about 11009.9448681635. The cubic root of 121218886 is about 494.9068096513.

The spelling of 121218886 in words is "one hundred twenty-one million, two hundred eighteen thousand, eight hundred eighty-six".