221053 has 8 divisors (see below), whose sum is σ = 263808. Its totient is φ = 181104.

The previous prime is 221047. The next prime is 221059. The reversal of 221053 is 350122.

It is an interprime number because it is at equal distance from previous prime (221047) and next prime (221059).

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

It is not a de Polignac number, because 221053 - 2⁵ = 221021 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 (221059) 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, 526 + ... + 847.

It is an arithmetic number, because the mean of its divisors is an integer number (32976).

2²²¹⁰⁵³ is an apocalyptic number.

221053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

221053 is a deficient number, since it is larger than the sum of its proper divisors (42755).

221053 is a wasteful number, since it uses less digits than its factorization.

221053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 221053 is about 470.1627377834. The cubic root of 221053 is about 60.4642686811.

Adding to 221053 its reverse (350122), we get a palindrome (571175).

The spelling of 221053 in words is "two hundred twenty-one thousand, fifty-three".