121118 has 8 divisors (see below), whose sum is σ = 189648. Its totient is φ = 57904.

The previous prime is 121081. The next prime is 121123. The reversal of 121118 is 811121.

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

It is an Ulam number.

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, 1271 + ... + 1362.

It is an arithmetic number, because the mean of its divisors is an integer number (23706).

2¹²¹¹¹⁸ is an apocalyptic number.

121118 is a deficient number, since it is larger than the sum of its proper divisors (68530).

121118 is a wasteful number, since it uses less digits than its factorization.

121118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658.

The product of its digits is 16, while the sum is 14.

The square root of 121118 is about 348.0201143612. The cubic root of 121118 is about 49.4769473994.

Subtracting from 121118 its sum of digits (14), we obtain a square (121104 = 348²).

Adding to 121118 its reverse (811121), we get a palindrome (932239).

The spelling of 121118 in words is "one hundred twenty-one thousand, one hundred eighteen".