221354055 has 48 divisors (see below), whose sum is σ = 420035616. Its totient is φ = 107170560.

The previous prime is 221354053. The next prime is 221354113. The reversal of 221354055 is 550453122.

It is a happy number.

221354055 is a `hidden beast` number, since 221 + 35 + 405 + 5 = 666.

It is not a de Polignac number, because 221354055 - 2¹ = 221354053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221354053) 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 47 ways as a sum of consecutive naturals, for example, 32584 + ... + 38786.

It is an arithmetic number, because the mean of its divisors is an integer number (8750742).

Almost surely, 2^221354055 is an apocalyptic number.

221354055 is a deficient number, since it is larger than the sum of its proper divisors (198681561).

221354055 is a wasteful number, since it uses less digits than its factorization.

221354055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288 (or 6285 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 221354055 is about 14877.9721400465. The cubic root of 221354055 is about 604.9170525810.

The spelling of 221354055 in words is "two hundred twenty-one million, three hundred fifty-four thousand, fifty-five".