121000011120218 has 32 divisors (see below), whose sum is σ = 193940151672960. Its totient is φ = 56418942182400.

The previous prime is 121000011120161. The next prime is 121000011120223. The reversal of 121000011120218 is 812021110000121.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121000011120218.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6715193 + ... + 16943843.

It is an arithmetic number, because the mean of its divisors is an integer number (6060629739780).

Almost surely, 2^{121000011120218} is an apocalyptic number.

121000011120218 is a deficient number, since it is larger than the sum of its proper divisors (72940140552742).

121000011120218 is a wasteful number, since it uses less digits than its factorization.

121000011120218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231862.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 121000011120218 its reverse (812021110000121), we get a palindrome (933021121120339).

The spelling of 121000011120218 in words is "one hundred twenty-one trillion, eleven million, one hundred twenty thousand, two hundred eighteen".