220923271 has 4 divisors (see below), whose sum is σ = 222950200. Its totient is φ = 218896344.

The previous prime is 220923251. The next prime is 220923299. The reversal of 220923271 is 172329022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220923271 - 2⁹ = 220922759 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 (220923251) 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 3 ways as a sum of consecutive naturals, for example, 1013301 + ... + 1013518.

It is an arithmetic number, because the mean of its divisors is an integer number (55737550).

Almost surely, 2^220923271 is an apocalyptic number.

220923271 is a deficient number, since it is larger than the sum of its proper divisors (2026929).

220923271 is a wasteful number, since it uses less digits than its factorization.

220923271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026928.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 220923271 is about 14863.4878477429. The cubic root of 220923271 is about 604.5243817877.

The spelling of 220923271 in words is "two hundred twenty million, nine hundred twenty-three thousand, two hundred seventy-one".