2152216206 has 24 divisors (see below), whose sum is σ = 5329297584. Its totient is φ = 614918880.

The previous prime is 2152216181. The next prime is 2152216217. The reversal of 2152216206 is 6026122512.

2152216206 is a `hidden beast` number, since 2 + 15 + 2 + 21 + 620 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2152216206.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8540415 + ... + 8540666.

It is an arithmetic number, because the mean of its divisors is an integer number (222054066).

Almost surely, 2^2152216206 is an apocalyptic number.

2152216206 is an abundant number, since it is smaller than the sum of its proper divisors (3177081378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2152216206 is a wasteful number, since it uses less digits than its factorization.

2152216206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17081096 (or 17081093 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2152216206 is about 46391.9842860811. The cubic root of 2152216206 is about 1291.1061973506.

Adding to 2152216206 its reverse (6026122512), we get a palindrome (8178338718).

The spelling of 2152216206 in words is "two billion, one hundred fifty-two million, two hundred sixteen thousand, two hundred six".