121133166 has 32 divisors (see below), whose sum is σ = 302047488. Its totient is φ = 31463040.

The previous prime is 121133161. The next prime is 121133167. The reversal of 121133166 is 661331121.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121133161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130635 + ... + 131558.

It is an arithmetic number, because the mean of its divisors is an integer number (9438984).

Almost surely, 2^121133166 is an apocalyptic number.

121133166 is an abundant number, since it is smaller than the sum of its proper divisors (180914322).

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

121133166 is a wasteful number, since it uses less digits than its factorization.

121133166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262216.

The product of its digits is 648, while the sum is 24.

The square root of 121133166 is about 11006.0513355154. The cubic root of 121133166 is about 494.7901242706.

Adding to 121133166 its reverse (661331121), we get a palindrome (782464287).

The spelling of 121133166 in words is "one hundred twenty-one million, one hundred thirty-three thousand, one hundred sixty-six".