223221404442 has 64 divisors (see below), whose sum is σ = 472849735680. Its totient is φ = 70107358464.

The previous prime is 223221404423. The next prime is 223221404443. The reversal of 223221404442 is 244404122322.

It is a happy number.

It is a super-3 number, since 3×223221404442³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223221404443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4696923 + ... + 4744209.

It is an arithmetic number, because the mean of its divisors is an integer number (7388277120).

Almost surely, 2^223221404442 is an apocalyptic number.

223221404442 is an abundant number, since it is smaller than the sum of its proper divisors (249628331238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223221404442 is a wasteful number, since it uses less digits than its factorization.

223221404442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47827.

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 223221404442 its reverse (244404122322), we get a palindrome (467625526764).

The spelling of 223221404442 in words is "two hundred twenty-three billion, two hundred twenty-one million, four hundred four thousand, four hundred forty-two".