224221655 has 16 divisors (see below), whose sum is σ = 307748160. Its totient is φ = 153629952.

The previous prime is 224221643. The next prime is 224221691. The reversal of 224221655 is 556122422.

It is not a de Polignac number, because 224221655 - 2⁴ = 224221639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79001 + ... + 81789.

It is an arithmetic number, because the mean of its divisors is an integer number (19234260).

Almost surely, 2^224221655 is an apocalyptic number.

224221655 is a deficient number, since it is larger than the sum of its proper divisors (83526505).

224221655 is a wasteful number, since it uses less digits than its factorization.

224221655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098.

The product of its digits is 9600, while the sum is 29.

The square root of 224221655 is about 14974.0326899603. The cubic root of 224221655 is about 607.5180483159.

The spelling of 224221655 in words is "two hundred twenty-four million, two hundred twenty-one thousand, six hundred fifty-five".