220654221 has 8 divisors (see below), whose sum is σ = 294532224. Its totient is φ = 146939520.

The previous prime is 220654219. The next prime is 220654267. The reversal of 220654221 is 122456022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220654221 - 2¹ = 220654219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220654191 and 220654200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220654321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37636 + ... + 43101.

It is an arithmetic number, because the mean of its divisors is an integer number (36816528).

Almost surely, 2^220654221 is an apocalyptic number.

It is an amenable number.

220654221 is a deficient number, since it is larger than the sum of its proper divisors (73878003).

220654221 is an equidigital number, since it uses as much as digits as its factorization.

220654221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81651.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 220654221 is about 14854.4343884242. The cubic root of 220654221 is about 604.2788767078.

The spelling of 220654221 in words is "two hundred twenty million, six hundred fifty-four thousand, two hundred twenty-one".