221234849 has 8 divisors (see below), whose sum is σ = 241456800. Its totient is φ = 201031200.

The previous prime is 221234843. The next prime is 221234851. The reversal of 221234849 is 948432122.

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

It is a cyclic number.

It is not a de Polignac number, because 221234849 - 2¹² = 221230753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221234843) 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, 37877 + ... + 43325.

It is an arithmetic number, because the mean of its divisors is an integer number (30182100).

Almost surely, 2^221234849 is an apocalyptic number.

It is an amenable number.

221234849 is a deficient number, since it is larger than the sum of its proper divisors (20221951).

221234849 is a wasteful number, since it uses less digits than its factorization.

221234849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9151.

The product of its digits is 27648, while the sum is 35.

The square root of 221234849 is about 14873.9654766306. The cubic root of 221234849 is about 604.8084442394.

The spelling of 221234849 in words is "two hundred twenty-one million, two hundred thirty-four thousand, eight hundred forty-nine".