121120166 has 8 divisors (see below), whose sum is σ = 186590640. Its totient is φ = 58923288.

The previous prime is 121120147. The next prime is 121120169. The reversal of 121120166 is 661021121.

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

It is a super-2 number, since 2×121120166² = 29340189223735112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818306 + ... + 818453.

It is an arithmetic number, because the mean of its divisors is an integer number (23323830).

Almost surely, 2^121120166 is an apocalyptic number.

121120166 is a deficient number, since it is larger than the sum of its proper divisors (65470474).

121120166 is a wasteful number, since it uses less digits than its factorization.

121120166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636798.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 121120166 is about 11005.4607354713. The cubic root of 121120166 is about 494.7724233608.

Adding to 121120166 its reverse (661021121), we get a palindrome (782141287).

The spelling of 121120166 in words is "one hundred twenty-one million, one hundred twenty thousand, one hundred sixty-six".