121066169 has 4 divisors (see below), whose sum is σ = 138361344. Its totient is φ = 103770996.

The previous prime is 121066111. The next prime is 121066189. The reversal of 121066169 is 961660121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 961660121 = 359 ⋅2678719.

It is not a de Polignac number, because 121066169 - 2⁸ = 121065913 is a prime.

It is a super-2 number, since 2×121066169² = 29314034552673122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121066189) 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, 8647577 + ... + 8647590.

It is an arithmetic number, because the mean of its divisors is an integer number (34590336).

Almost surely, 2^121066169 is an apocalyptic number.

It is an amenable number.

121066169 is a deficient number, since it is larger than the sum of its proper divisors (17295175).

121066169 is an equidigital number, since it uses as much as digits as its factorization.

121066169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17295174.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 121066169 is about 11003.0072707419. The cubic root of 121066169 is about 494.6988870303.

The spelling of 121066169 in words is "one hundred twenty-one million, sixty-six thousand, one hundred sixty-nine".