223331112021 has 4 divisors (see below), whose sum is σ = 297774816032. Its totient is φ = 148887408012.

The previous prime is 223331112001. The next prime is 223331112047. The reversal of 223331112021 is 120211133322.

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 not a de Polignac number, because 223331112021 - 2⁶ = 223331111957 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 (223331112001) 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, 37221852001 + ... + 37221852006.

It is an arithmetic number, because the mean of its divisors is an integer number (74443704008).

Almost surely, 2^223331112021 is an apocalyptic number.

It is an amenable number.

223331112021 is a deficient number, since it is larger than the sum of its proper divisors (74443704011).

223331112021 is an equidigital number, since it uses as much as digits as its factorization.

223331112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74443704010.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 223331112021 its reverse (120211133322), we get a palindrome (343542245343).

The spelling of 223331112021 in words is "two hundred twenty-three billion, three hundred thirty-one million, one hundred twelve thousand, twenty-one".