221052263 has 8 divisors (see below), whose sum is σ = 224888832. Its totient is φ = 217248696.

The previous prime is 221052253. The next prime is 221052277. The reversal of 221052263 is 362250122.

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

It is a cyclic number.

It is not a de Polignac number, because 221052263 - 2¹² = 221048167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221052203) 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, 5456 + ... + 21722.

It is an arithmetic number, because the mean of its divisors is an integer number (28111104).

Almost surely, 2^221052263 is an apocalyptic number.

221052263 is a deficient number, since it is larger than the sum of its proper divisors (3836569).

221052263 is a wasteful number, since it uses less digits than its factorization.

221052263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16501.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 221052263 is about 14867.8264383198. The cubic root of 221052263 is about 604.6420148419.

The spelling of 221052263 in words is "two hundred twenty-one million, fifty-two thousand, two hundred sixty-three".