221553104 has 10 divisors (see below), whose sum is σ = 429259170. Its totient is φ = 110776544.

The previous prime is 221553097. The next prime is 221553109. The reversal of 221553104 is 401355122.

221553104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 180848704 + 40704400 = 13448^2 + 6380^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 221553104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221553109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6923519 + ... + 6923550.

It is an arithmetic number, because the mean of its divisors is an integer number (42925917).

Almost surely, 2^221553104 is an apocalyptic number.

It is an amenable number.

221553104 is a deficient number, since it is larger than the sum of its proper divisors (207706066).

221553104 is a wasteful number, since it uses less digits than its factorization.

221553104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13847077 (or 13847071 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 221553104 is about 14884.6600229901. The cubic root of 221553104 is about 605.0983188345.

The spelling of 221553104 in words is "two hundred twenty-one million, five hundred fifty-three thousand, one hundred four".