222231033221 has 4 divisors (see below), whose sum is σ = 222361836000. Its totient is φ = 222100230444.

The previous prime is 222231033169. The next prime is 222231033229. The reversal of 222231033221 is 122330132222.

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 222231033221 - 2¹⁰ = 222231032197 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 (222231033229) 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, 65398841 + ... + 65402238.

It is an arithmetic number, because the mean of its divisors is an integer number (55590459000).

Almost surely, 2^222231033221 is an apocalyptic number.

It is an amenable number.

222231033221 is a deficient number, since it is larger than the sum of its proper divisors (130802779).

222231033221 is a wasteful number, since it uses less digits than its factorization.

222231033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130802778.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 222231033221 its reverse (122330132222), we get a palindrome (344561165443).

Subtracting from 222231033221 its reverse (122330132222), we obtain a palindrome (99900900999).

The spelling of 222231033221 in words is "two hundred twenty-two billion, two hundred thirty-one million, thirty-three thousand, two hundred twenty-one".