221760201 has 8 divisors (see below), whose sum is σ = 318424960. Its totient is φ = 136467792.

The previous prime is 221760197. The next prime is 221760211. The reversal of 221760201 is 102067122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221760201 - 2² = 221760197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221760211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2843041 + ... + 2843118.

It is an arithmetic number, because the mean of its divisors is an integer number (39803120).

Almost surely, 2^221760201 is an apocalyptic number.

It is an amenable number.

221760201 is a deficient number, since it is larger than the sum of its proper divisors (96664759).

221760201 is a wasteful number, since it uses less digits than its factorization.

221760201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5686175.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 221760201 is about 14891.6151239548. The cubic root of 221760201 is about 605.2867988854.

The spelling of 221760201 in words is "two hundred twenty-one million, seven hundred sixty thousand, two hundred one".