121227224 has 16 divisors (see below), whose sum is σ = 227544000. Its totient is φ = 60548832.

The previous prime is 121227203. The next prime is 121227229. The reversal of 121227224 is 422722121.

It is a super-3 number, since 3×121227224³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121227224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121227229) 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, 377 + ... + 15575.

It is an arithmetic number, because the mean of its divisors is an integer number (14221500).

Almost surely, 2^121227224 is an apocalyptic number.

It is an amenable number.

121227224 is a deficient number, since it is larger than the sum of its proper divisors (106316776).

121227224 is a wasteful number, since it uses less digits than its factorization.

121227224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16202 (or 16198 counting only the distinct ones).

The product of its digits is 896, while the sum is 23.

The square root of 121227224 is about 11010.3235193159. The cubic root of 121227224 is about 494.9181567235.

Adding to 121227224 its reverse (422722121), we get a palindrome (543949345).

The spelling of 121227224 in words is "one hundred twenty-one million, two hundred twenty-seven thousand, two hundred twenty-four".