2184220851 has 8 divisors (see below), whose sum is σ = 2913563904. Its totient is φ = 1455512520.

The previous prime is 2184220817. The next prime is 2184220891. The reversal of 2184220851 is 1580224812.

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

It is not a de Polignac number, because 2184220851 - 2¹⁴ = 2184204467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2184220891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150591 + ... + 164456.

It is an arithmetic number, because the mean of its divisors is an integer number (364195488).

Almost surely, 2^2184220851 is an apocalyptic number.

2184220851 is a deficient number, since it is larger than the sum of its proper divisors (729343053).

2184220851 is a wasteful number, since it uses less digits than its factorization.

2184220851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317361.

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 2184220851 is about 46735.6486100279. The cubic root of 2184220851 is about 1297.4745549118.

The spelling of 2184220851 in words is "two billion, one hundred eighty-four million, two hundred twenty thousand, eight hundred fifty-one".