221355228153 has 8 divisors (see below), whose sum is σ = 295148469600. Its totient is φ = 147566069408.

The previous prime is 221355228151. The next prime is 221355228169. The reversal of 221355228153 is 351822553122.

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 221355228153 - 2¹ = 221355228151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221355228151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891843 + ... + 1112696.

It is an arithmetic number, because the mean of its divisors is an integer number (36893558700).

Almost surely, 2^221355228153 is an apocalyptic number.

It is an amenable number.

221355228153 is a deficient number, since it is larger than the sum of its proper divisors (73793241447).

221355228153 is a wasteful number, since it uses less digits than its factorization.

221355228153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041351.

The product of its digits is 144000, while the sum is 39.

The spelling of 221355228153 in words is "two hundred twenty-one billion, three hundred fifty-five million, two hundred twenty-eight thousand, one hundred fifty-three".