121613227 has 4 divisors (see below), whose sum is σ = 121716360. Its totient is φ = 121510096.

The previous prime is 121613203. The next prime is 121613267. The reversal of 121613227 is 722316121.

It is a happy number.

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 121613227 - 2⁷ = 121613099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121613267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49777 + ... + 52162.

It is an arithmetic number, because the mean of its divisors is an integer number (30429090).

Almost surely, 2^121613227 is an apocalyptic number.

121613227 is a deficient number, since it is larger than the sum of its proper divisors (103133).

121613227 is a wasteful number, since it uses less digits than its factorization.

121613227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103132.

The product of its digits is 1008, while the sum is 25.

The square root of 121613227 is about 11027.8387275114. The cubic root of 121613227 is about 495.4428944288.

Adding to 121613227 its reverse (722316121), we get a palindrome (843929348).

The spelling of 121613227 in words is "one hundred twenty-one million, six hundred thirteen thousand, two hundred twenty-seven".