224136121 has 8 divisors (see below), whose sum is σ = 251121024. Its totient is φ = 198252720.

The previous prime is 224136097. The next prime is 224136149. The reversal of 224136121 is 121631422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 224136121 - 2¹⁵ = 224103353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 224136092 and 224136101.

It is not an unprimeable number, because it can be changed into a prime (224136151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274945 + ... + 275758.

It is an arithmetic number, because the mean of its divisors is an integer number (31390128).

Almost surely, 2^224136121 is an apocalyptic number.

It is an amenable number.

224136121 is a deficient number, since it is larger than the sum of its proper divisors (26984903).

224136121 is a wasteful number, since it uses less digits than its factorization.

224136121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550751.

The product of its digits is 576, while the sum is 22.

The square root of 224136121 is about 14971.1763398873. The cubic root of 224136121 is about 607.4407883717.

Adding to 224136121 its reverse (121631422), we get a palindrome (345767543).

The spelling of 224136121 in words is "two hundred twenty-four million, one hundred thirty-six thousand, one hundred twenty-one".