221335053 has 16 divisors (see below), whose sum is σ = 312848640. Its totient is φ = 138710016.

The previous prime is 221335039. The next prime is 221335067. The reversal of 221335053 is 350533122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221335039) and next prime (221335067).

It is not a de Polignac number, because 221335053 - 2⁹ = 221334541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221335013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 50901 + ... + 55077.

It is an arithmetic number, because the mean of its divisors is an integer number (19553040).

Almost surely, 2^221335053 is an apocalyptic number.

It is an amenable number.

221335053 is a deficient number, since it is larger than the sum of its proper divisors (91513587).

221335053 is a wasteful number, since it uses less digits than its factorization.

221335053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5236.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 221335053 is about 14877.3335312481. Note that the first 3 decimals coincide. The cubic root of 221335053 is about 604.8997425107.

Adding to 221335053 its reverse (350533122), we get a palindrome (571868175).

The spelling of 221335053 in words is "two hundred twenty-one million, three hundred thirty-five thousand, fifty-three".