221325363 has 48 divisors (see below), whose sum is σ = 389188800. Its totient is φ = 118315008.

The previous prime is 221325353. The next prime is 221325367. The reversal of 221325363 is 363523122.

It is not a de Polignac number, because 221325363 - 2¹⁰ = 221324339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221325367) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210463 + ... + 211511.

It is an arithmetic number, because the mean of its divisors is an integer number (8108100).

Almost surely, 2^221325363 is an apocalyptic number.

221325363 is a deficient number, since it is larger than the sum of its proper divisors (167863437).

221325363 is a wasteful number, since it uses less digits than its factorization.

221325363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1276 (or 1273 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 221325363 is about 14877.0078644867. The cubic root of 221325363 is about 604.8909149226.

Adding to 221325363 its reverse (363523122), we get a palindrome (584848485).

It can be divided in two parts, 22132 and 5363, that added together give a triangular number (27495 = T₂₃₄).

The spelling of 221325363 in words is "two hundred twenty-one million, three hundred twenty-five thousand, three hundred sixty-three".