221265063 has 6 divisors (see below), whose sum is σ = 319605104. Its totient is φ = 147510036.

The previous prime is 221265061. The next prime is 221265091. The reversal of 221265063 is 360562122.

221265063 is a `hidden beast` number, since 2 + 2 + 1 + 2 + 650 + 6 + 3 = 666.

221265063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221265063 - 2¹ = 221265061 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 (221265061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12292495 + ... + 12292512.

Almost surely, 2^221265063 is an apocalyptic number.

221265063 is a deficient number, since it is larger than the sum of its proper divisors (98340041).

221265063 is a wasteful number, since it uses less digits than its factorization.

221265063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24585013 (or 24585010 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 221265063 is about 14874.9811092317. The cubic root of 221265063 is about 604.8359758430.

The spelling of 221265063 in words is "two hundred twenty-one million, two hundred sixty-five thousand, sixty-three".