121066121 has 4 divisors (see below), whose sum is σ = 132072144. Its totient is φ = 110060100.

The previous prime is 121066111. The next prime is 121066189. The reversal of 121066121 is 121660121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121066121 - 2¹⁴ = 121049737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121066093 and 121066102.

It is not an unprimeable number, because it can be changed into a prime (121066111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5502995 + ... + 5503016.

It is an arithmetic number, because the mean of its divisors is an integer number (33018036).

Almost surely, 2^121066121 is an apocalyptic number.

121066121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121066121 is a deficient number, since it is larger than the sum of its proper divisors (11006023).

121066121 is a wasteful number, since it uses less digits than its factorization.

121066121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11006022.

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

The square root of 121066121 is about 11003.0050895199. The cubic root of 121066121 is about 494.6988216513.

The spelling of 121066121 in words is "one hundred twenty-one million, sixty-six thousand, one hundred twenty-one".