221201363 has 4 divisors (see below), whose sum is σ = 232843560. Its totient is φ = 209559168.

The previous prime is 221201359. The next prime is 221201369. The reversal of 221201363 is 363102122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 221201363 - 2² = 221201359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221201369) 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, 5821070 + ... + 5821107.

It is an arithmetic number, because the mean of its divisors is an integer number (58210890).

Almost surely, 2^221201363 is an apocalyptic number.

221201363 is a deficient number, since it is larger than the sum of its proper divisors (11642197).

221201363 is a wasteful number, since it uses less digits than its factorization.

221201363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11642196.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 221201363 is about 14872.8397759137. The cubic root of 221201363 is about 604.7779281949. Note that the first 3 decimals are identical.

Adding to 221201363 its reverse (363102122), we get a palindrome (584303485).

The spelling of 221201363 in words is "two hundred twenty-one million, two hundred one thousand, three hundred sixty-three".