224214121 has 2 divisors, whose sum is σ = 224214122. Its totient is φ = 224214120.

The previous prime is 224214119. The next prime is 224214127. The reversal of 224214121 is 121412422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223173721 + 1040400 = 14939^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 224214121 - 2¹ = 224214119 is a prime.

Together with 224214119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (224214127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112107060 + 112107061.

It is an arithmetic number, because the mean of its divisors is an integer number (112107061).

Almost surely, 2^224214121 is an apocalyptic number.

It is an amenable number.

224214121 is a deficient number, since it is larger than the sum of its proper divisors (1).

224214121 is an equidigital number, since it uses as much as digits as its factorization.

224214121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256, while the sum is 19.

The square root of 224214121 is about 14973.7811190093. The cubic root of 224214121 is about 607.5112438999.

Adding to 224214121 its reverse (121412422), we get a palindrome (345626543).

The spelling of 224214121 in words is "two hundred twenty-four million, two hundred fourteen thousand, one hundred twenty-one".