121310166 has 8 divisors (see below), whose sum is σ = 242620344. Its totient is φ = 40436720.

The previous prime is 121310141. The next prime is 121310177. The reversal of 121310166 is 661013121.

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

121310166 is an admirable 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, 10109175 + ... + 10109186.

It is an arithmetic number, because the mean of its divisors is an integer number (30327543).

Almost surely, 2^121310166 is an apocalyptic number.

121310166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121310166 is a wasteful number, since it uses less digits than its factorization.

121310166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20218366.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 121310166 is about 11014.0894312694. The cubic root of 121310166 is about 495.0310030577.

Adding to 121310166 its reverse (661013121), we get a palindrome (782323287).

The spelling of 121310166 in words is "one hundred twenty-one million, three hundred ten thousand, one hundred sixty-six".