220905219 has 16 divisors (see below), whose sum is σ = 300609792. Its totient is φ = 144245088.

The previous prime is 220905199. The next prime is 220905283. The reversal of 220905219 is 912509022.

It is not a de Polignac number, because 220905219 - 2⁹ = 220904707 is a prime.

It is a super-2 number, since 2×220905219² = 97598231562875922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220905019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168364 + ... + 169670.

It is an arithmetic number, because the mean of its divisors is an integer number (18788112).

Almost surely, 2^220905219 is an apocalyptic number.

220905219 is a deficient number, since it is larger than the sum of its proper divisors (79704573).

220905219 is a wasteful number, since it uses less digits than its factorization.

220905219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 220905219 is about 14862.8805754470. The cubic root of 220905219 is about 604.5079157822.

The spelling of 220905219 in words is "two hundred twenty million, nine hundred five thousand, two hundred nineteen".