221342032 has 10 divisors (see below), whose sum is σ = 428850218. Its totient is φ = 110671008.

The previous prime is 221341999. The next prime is 221342053. The reversal of 221342032 is 230243122.

It can be written as a sum of positive squares in only one way, i.e., 221295376 + 46656 = 14876^2 + 216^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6916923 + ... + 6916954.

Almost surely, 2^221342032 is an apocalyptic number.

It is an amenable number.

221342032 is a deficient number, since it is larger than the sum of its proper divisors (207508186).

221342032 is a wasteful number, since it uses less digits than its factorization.

221342032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13833885 (or 13833879 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 221342032 is about 14877.5680808390. The cubic root of 221342032 is about 604.9061002187.

Adding to 221342032 its reverse (230243122), we get a palindrome (451585154).

The spelling of 221342032 in words is "two hundred twenty-one million, three hundred forty-two thousand, thirty-two".