221053135 has 8 divisors (see below), whose sum is σ = 265576320. Its totient is φ = 176634144.

The previous prime is 221053123. The next prime is 221053169. The reversal of 221053135 is 531350122.

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

It is a cyclic number.

It is not a de Polignac number, because 221053135 - 2⁵ = 221053103 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21300 + ... + 29929.

It is an arithmetic number, because the mean of its divisors is an integer number (33197040).

Almost surely, 2^221053135 is an apocalyptic number.

221053135 is a deficient number, since it is larger than the sum of its proper divisors (44523185).

221053135 is an equidigital number, since it uses as much as digits as its factorization.

221053135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52097.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 221053135 is about 14867.8557633574. The cubic root of 221053135 is about 604.6428098984.

The spelling of 221053135 in words is "two hundred twenty-one million, fifty-three thousand, one hundred thirty-five".