216211721150 has 48 divisors (see below), whose sum is σ = 415364129280. Its totient is φ = 83646952800.

The previous prime is 216211721113. The next prime is 216211721203. The reversal of 216211721150 is 51127112612.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2730821 + ... + 2808879.

It is an arithmetic number, because the mean of its divisors is an integer number (8653419360).

Almost surely, 2^216211721150 is an apocalyptic number.

216211721150 is a deficient number, since it is larger than the sum of its proper divisors (199152408130).

216211721150 is a wasteful number, since it uses less digits than its factorization.

216211721150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79889 (or 79884 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 29.

Adding to 216211721150 its reverse (51127112612), we get a palindrome (267338833762).

The spelling of 216211721150 in words is "two hundred sixteen billion, two hundred eleven million, seven hundred twenty-one thousand, one hundred fifty".