121668227 has 4 divisors (see below), whose sum is σ = 123381936. Its totient is φ = 119954520.

The previous prime is 121668203. The next prime is 121668233. The reversal of 121668227 is 722866121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121668227 - 2⁶ = 121668163 is a prime.

It is a super-2 number, since 2×121668227² = 29606314922647058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121668257) 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, 856748 + ... + 856889.

It is an arithmetic number, because the mean of its divisors is an integer number (30845484).

Almost surely, 2^121668227 is an apocalyptic number.

121668227 is a deficient number, since it is larger than the sum of its proper divisors (1713709).

121668227 is an equidigital number, since it uses as much as digits as its factorization.

121668227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713708.

The product of its digits is 16128, while the sum is 35.

The square root of 121668227 is about 11030.3321346186. The cubic root of 121668227 is about 495.5175717563.

The spelling of 121668227 in words is "one hundred twenty-one million, six hundred sixty-eight thousand, two hundred twenty-seven".