224023213121 has 4 divisors (see below), whose sum is σ = 228789664512. Its totient is φ = 219256761732.

The previous prime is 224023213111. The next prime is 224023213129. The reversal of 224023213121 is 121312320422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 224023213121 - 2¹⁰ = 224023212097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224023213129) 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, 2383225625 + ... + 2383225718.

It is an arithmetic number, because the mean of its divisors is an integer number (57197416128).

Almost surely, 2^224023213121 is an apocalyptic number.

It is an amenable number.

224023213121 is a deficient number, since it is larger than the sum of its proper divisors (4766451391).

224023213121 is an equidigital number, since it uses as much as digits as its factorization.

224023213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766451390.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 224023213121 its reverse (121312320422), we get a palindrome (345335533543).

The spelling of 224023213121 in words is "two hundred twenty-four billion, twenty-three million, two hundred thirteen thousand, one hundred twenty-one".