216050901121 has 16 divisors (see below), whose sum is σ = 248116343040. Its totient is φ = 186057835920.

The previous prime is 216050901119. The next prime is 216050901167. The reversal of 216050901121 is 121109050612.

It is not a de Polignac number, because 216050901121 - 2¹ = 216050901119 is a prime.

It is a super-2 number, since 2×216050901121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 216050901121.

It is not an unprimeable number, because it can be changed into a prime (216050901221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3236346 + ... + 3302428.

It is an arithmetic number, because the mean of its divisors is an integer number (15507271440).

Almost surely, 2^216050901121 is an apocalyptic number.

It is an amenable number.

216050901121 is a deficient number, since it is larger than the sum of its proper divisors (32065441919).

216050901121 is a wasteful number, since it uses less digits than its factorization.

216050901121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81756.

The product of its (nonzero) digits is 1080, while the sum is 28.

Adding to 216050901121 its reverse (121109050612), we get a palindrome (337159951733).

The spelling of 216050901121 in words is "two hundred sixteen billion, fifty million, nine hundred one thousand, one hundred twenty-one".