121862118 has 48 divisors (see below), whose sum is σ = 293312880. Its totient is φ = 33614784.

The previous prime is 121862107. The next prime is 121862149. The reversal of 121862118 is 811268121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1380 + ... + 15672.

It is an arithmetic number, because the mean of its divisors is an integer number (6110685).

Almost surely, 2^121862118 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121862118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146656440).

121862118 is an abundant number, since it is smaller than the sum of its proper divisors (171450762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121862118 is a wasteful number, since it uses less digits than its factorization.

121862118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14341 (or 14334 counting only the distinct ones).

The product of its digits is 1536, while the sum is 30.

The square root of 121862118 is about 11039.1176277817. The cubic root of 121862118 is about 495.7806516885.

It can be divided in two parts, 1218 and 62118, that added together give a palindrome (63336).

The spelling of 121862118 in words is "one hundred twenty-one million, eight hundred sixty-two thousand, one hundred eighteen".