121055166 has 24 divisors (see below), whose sum is σ = 264887064. Its totient is φ = 39951600.

The previous prime is 121055161. The next prime is 121055167. The reversal of 121055166 is 661550121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121055161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31476 + ... + 35111.

It is an arithmetic number, because the mean of its divisors is an integer number (11036961).

Almost surely, 2^121055166 is an apocalyptic number.

121055166 is an abundant number, since it is smaller than the sum of its proper divisors (143831898).

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

121055166 is a wasteful number, since it uses less digits than its factorization.

121055166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66696 (or 66693 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 121055166 is about 11002.5072597113. The cubic root of 121055166 is about 494.6838998080.

It can be divided in two parts, 12105 and 5166, that added together give a palindrome (17271).

The spelling of 121055166 in words is "one hundred twenty-one million, fifty-five thousand, one hundred sixty-six".