221053133 has 16 divisors (see below), whose sum is σ = 260022144. Its totient is φ = 183954240.

The previous prime is 221053123. The next prime is 221053169. The reversal of 221053133 is 331350122.

It is a cyclic number.

It is not a de Polignac number, because 221053133 - 2¹⁸ = 220790989 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 (221053103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234443 + ... + 235383.

It is an arithmetic number, because the mean of its divisors is an integer number (16251384).

Almost surely, 2^221053133 is an apocalyptic number.

It is an amenable number.

221053133 is a deficient number, since it is larger than the sum of its proper divisors (38969011).

221053133 is an equidigital number, since it uses as much as digits as its factorization.

221053133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 221053133 is about 14867.8556960982. The cubic root of 221053133 is about 604.6428080749.

The spelling of 221053133 in words is "two hundred twenty-one million, fifty-three thousand, one hundred thirty-three".