221344423044 has 48 divisors (see below), whose sum is σ = 544027942080. Its totient is φ = 69850028160.

The previous prime is 221344423037. The next prime is 221344423103. The reversal of 221344423044 is 440324443122.

221344423044 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221344423044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221344422996 and 221344423014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2787 + ... + 665354.

It is an arithmetic number, because the mean of its divisors is an integer number (11333915460).

Almost surely, 2^221344423044 is an apocalyptic number.

It is an amenable number.

221344423044 is an abundant number, since it is smaller than the sum of its proper divisors (322683519036).

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

221344423044 is a wasteful number, since it uses less digits than its factorization.

221344423044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669620 (or 669618 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 221344423044 its reverse (440324443122), we get a palindrome (661668866166).

The spelling of 221344423044 in words is "two hundred twenty-one billion, three hundred forty-four million, four hundred twenty-three thousand, forty-four".