2216214521 has 8 divisors (see below), whose sum is σ = 2294932224. Its totient is φ = 2137948560.

The previous prime is 2216214491. The next prime is 2216214541. The reversal of 2216214521 is 1254126122.

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 2216214521 - 2³⁰ = 1142472697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216214541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102935 + ... + 122588.

It is an arithmetic number, because the mean of its divisors is an integer number (286866528).

Almost surely, 2^2216214521 is an apocalyptic number.

It is an amenable number.

2216214521 is a deficient number, since it is larger than the sum of its proper divisors (78717703).

2216214521 is a wasteful number, since it uses less digits than its factorization.

2216214521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225871.

The product of its digits is 1920, while the sum is 26.

The square root of 2216214521 is about 47076.6876596049. The cubic root of 2216214521 is about 1303.7788513100.

The spelling of 2216214521 in words is "two billion, two hundred sixteen million, two hundred fourteen thousand, five hundred twenty-one".