221063141 has 4 divisors (see below), whose sum is σ = 238068012. Its totient is φ = 204058272.

The previous prime is 221063131. The next prime is 221063149. The reversal of 221063141 is 141360122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15570916 + 205492225 = 3946^2 + 14335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221063141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221063149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8502416 + ... + 8502441.

It is an arithmetic number, because the mean of its divisors is an integer number (59517003).

Almost surely, 2^221063141 is an apocalyptic number.

It is an amenable number.

221063141 is a deficient number, since it is larger than the sum of its proper divisors (17004871).

221063141 is a wasteful number, since it uses less digits than its factorization.

221063141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17004870.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 221063141 is about 14868.1922572988. The cubic root of 221063141 is about 604.6519328403.

The spelling of 221063141 in words is "two hundred twenty-one million, sixty-three thousand, one hundred forty-one".