221050272 has 48 divisors (see below), whose sum is σ = 593762400. Its totient is φ = 71968512.

The previous prime is 221050253. The next prime is 221050273. The reversal of 221050272 is 272050122.

It is a happy number.

221050272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (221050273) 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, 22647 + ... + 30902.

It is an arithmetic number, because the mean of its divisors is an integer number (12370050).

Almost surely, 2^221050272 is an apocalyptic number.

It is an amenable number.

221050272 is an abundant number, since it is smaller than the sum of its proper divisors (372712128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221050272 is a wasteful number, since it uses less digits than its factorization.

221050272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53605 (or 53597 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 221050272 is about 14867.7594815090. The cubic root of 221050272 is about 604.6401995157.

The spelling of 221050272 in words is "two hundred twenty-one million, fifty thousand, two hundred seventy-two".