220551223 has 4 divisors (see below), whose sum is σ = 221176368. Its totient is φ = 219926080.

The previous prime is 220551197. The next prime is 220551229. The reversal of 220551223 is 322155022.

220551223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 220551223 - 2¹³ = 220543031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220551194 and 220551203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220551229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312043 + ... + 312748.

It is an arithmetic number, because the mean of its divisors is an integer number (55294092).

Almost surely, 2^220551223 is an apocalyptic number.

220551223 is a deficient number, since it is larger than the sum of its proper divisors (625145).

220551223 is an equidigital number, since it uses as much as digits as its factorization.

220551223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625144.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 220551223 is about 14850.9670728879. The cubic root of 220551223 is about 604.1848393762.

The spelling of 220551223 in words is "two hundred twenty million, five hundred fifty-one thousand, two hundred twenty-three".