223044331021 has 16 divisors (see below), whose sum is σ = 228610166400. Its totient is φ = 217547688960.

The previous prime is 223044331019. The next prime is 223044331049. The reversal of 223044331021 is 120133440322.

It is not a de Polignac number, because 223044331021 - 2¹ = 223044331019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223044331091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22715305 + ... + 22725121.

It is an arithmetic number, because the mean of its divisors is an integer number (14288135400).

Almost surely, 2^223044331021 is an apocalyptic number.

It is an amenable number.

223044331021 is a deficient number, since it is larger than the sum of its proper divisors (5565835379).

223044331021 is an equidigital number, since it uses as much as digits as its factorization.

223044331021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 223044331021 its reverse (120133440322), we get a palindrome (343177771343).

The spelling of 223044331021 in words is "two hundred twenty-three billion, forty-four million, three hundred thirty-one thousand, twenty-one".