2216972912 has 80 divisors (see below), whose sum is σ = 5415724800. Its totient is φ = 854008320.

The previous prime is 2216972893. The next prime is 2216972917. The reversal of 2216972912 is 2192796122.

It is a self number, because there is not a number n which added to its sum of digits gives 2216972912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216972917) 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, 99539 + ... + 119757.

It is an arithmetic number, because the mean of its divisors is an integer number (67696560).

Almost surely, 2^2216972912 is an apocalyptic number.

2216972912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216972912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2707862400).

2216972912 is an abundant number, since it is smaller than the sum of its proper divisors (3198751888).

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

2216972912 is a wasteful number, since it uses less digits than its factorization.

2216972912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20334 (or 20328 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 2216972912 is about 47084.7418172809. The cubic root of 2216972912 is about 1303.9275525259.

The spelling of 2216972912 in words is "two billion, two hundred sixteen million, nine hundred seventy-two thousand, nine hundred twelve".