20116122216 has 32 divisors (see below), whose sum is σ = 51142687200. Its totient is φ = 6591723200.

The previous prime is 20116122179. The next prime is 20116122217. The reversal of 20116122216 is 61222161102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20116122217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7101735 + ... + 7104566.

It is an arithmetic number, because the mean of its divisors is an integer number (1598208975).

Almost surely, 2^20116122216 is an apocalyptic number.

It is an amenable number.

20116122216 is an abundant number, since it is smaller than the sum of its proper divisors (31026564984).

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

20116122216 is a wasteful number, since it uses less digits than its factorization.

20116122216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14206369 (or 14206365 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 20116122216 its reverse (61222161102), we get a palindrome (81338283318).

The spelling of 20116122216 in words is "twenty billion, one hundred sixteen million, one hundred twenty-two thousand, two hundred sixteen".