221302343440444 has 12 divisors (see below), whose sum is σ = 442604686880944. Its totient is φ = 94843861474464.

The previous prime is 221302343440337. The next prime is 221302343440487. The reversal of 221302343440444 is 444044343203122.

221302343440444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

221302343440444 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 221302343440397 and 221302343440406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3951827561409 + ... + 3951827561464.

Almost surely, 2^{221302343440444} is an apocalyptic number.

It is an amenable number.

221302343440444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221302343440444 is a wasteful number, since it uses less digits than its factorization.

221302343440444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7903655122884 (or 7903655122882 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 40.

Adding to 221302343440444 its reverse (444044343203122), we get a palindrome (665346686643566).

The spelling of 221302343440444 in words is "two hundred twenty-one trillion, three hundred two billion, three hundred forty-three million, four hundred forty thousand, four hundred forty-four".