2231337216 has 72 divisors (see below), whose sum is σ = 5955888960. Its totient is φ = 741615616.

The previous prime is 2231337191. The next prime is 2231337217. The reversal of 2231337216 is 6127331322.

It is a super-3 number, since 3×2231337216³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231337217) 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, 271666 + ... + 279758.

It is an arithmetic number, because the mean of its divisors is an integer number (82720680).

Almost surely, 2^2231337216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231337216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2977944480).

2231337216 is an abundant number, since it is smaller than the sum of its proper divisors (3724551744).

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

2231337216 is an equidigital number, since it uses as much as digits as its factorization.

2231337216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8471 (or 8457 counting only the distinct ones).

The product of its digits is 9072, while the sum is 30.

The square root of 2231337216 is about 47237.0322522489. The cubic root of 2231337216 is about 1306.7376461975.

Adding to 2231337216 its reverse (6127331322), we get a palindrome (8358668538).

The spelling of 2231337216 in words is "two billion, two hundred thirty-one million, three hundred thirty-seven thousand, two hundred sixteen".