221134552 has 16 divisors (see below), whose sum is σ = 424270440. Its totient is φ = 107995776.

The previous prime is 221134549. The next prime is 221134561. The reversal of 221134552 is 255431122.

221134552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 321073 + ... + 321760.

Almost surely, 2^221134552 is an apocalyptic number.

It is an amenable number.

221134552 is a deficient number, since it is larger than the sum of its proper divisors (203135888).

221134552 is a wasteful number, since it uses less digits than its factorization.

221134552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642882 (or 642878 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 221134552 is about 14870.5935322031. The cubic root of 221134552 is about 604.7170336231.

Adding to 221134552 its reverse (255431122), we get a palindrome (476565674).

It can be divided in two parts, 2211 and 34552, that added together give a palindrome (36763).

The spelling of 221134552 in words is "two hundred twenty-one million, one hundred thirty-four thousand, five hundred fifty-two".