221048 has 8 divisors (see below), whose sum is σ = 414480. Its totient is φ = 110520.

The previous prime is 221047. The next prime is 221059. The reversal of 221048 is 840122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 221048.

It is not an unprimeable number, because it can be changed into a prime (221047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13808 + ... + 13823.

It is an arithmetic number, because the mean of its divisors is an integer number (51810).

2²²¹⁰⁴⁸ is an apocalyptic number.

It is an amenable number.

221048 is a deficient number, since it is larger than the sum of its proper divisors (193432).

221048 is a wasteful number, since it uses less digits than its factorization.

221048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27637 (or 27633 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 221048 is about 470.1574204455. The cubic root of 221048 is about 60.4638127970.

The spelling of 221048 in words is "two hundred twenty-one thousand, forty-eight".