224209035121 has 4 divisors (see below), whose sum is σ = 225171305892. Its totient is φ = 223246764352.

The previous prime is 224209035119. The next prime is 224209035221. The reversal of 224209035121 is 121530902422.

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 88976327521 + 135232707600 = 298289^2 + 367740^2 .

It is a cyclic number.

It is not a de Polignac number, because 224209035121 - 2¹ = 224209035119 is a prime.

It is a super-2 number, since 2×224209035121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224209035221) 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, 481135036 + ... + 481135501.

It is an arithmetic number, because the mean of its divisors is an integer number (56292826473).

Almost surely, 2^224209035121 is an apocalyptic number.

It is an amenable number.

224209035121 is a deficient number, since it is larger than the sum of its proper divisors (962270771).

224209035121 is an equidigital number, since it uses as much as digits as its factorization.

224209035121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962270770.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 224209035121 its reverse (121530902422), we get a palindrome (345739937543).

The spelling of 224209035121 in words is "two hundred twenty-four billion, two hundred nine million, thirty-five thousand, one hundred twenty-one".