224194121 has 4 divisors (see below), whose sum is σ = 224416452. Its totient is φ = 223971792.

The previous prime is 224194097. The next prime is 224194123. The reversal of 224194121 is 121491422.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14523721 + 209670400 = 3811^2 + 14480^2 .

It is a cyclic number.

It is not a de Polignac number, because 224194121 - 2⁶ = 224194057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224194123) 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, 109646 + ... + 111671.

It is an arithmetic number, because the mean of its divisors is an integer number (56104113).

Almost surely, 2^224194121 is an apocalyptic number.

It is an amenable number.

224194121 is a deficient number, since it is larger than the sum of its proper divisors (222331).

224194121 is a wasteful number, since it uses less digits than its factorization.

224194121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222330.

The product of its digits is 1152, while the sum is 26.

The square root of 224194121 is about 14973.1132701252. The cubic root of 224194121 is about 607.4931799378.

The spelling of 224194121 in words is "two hundred twenty-four million, one hundred ninety-four thousand, one hundred twenty-one".