2213132236 has 72 divisors (see below), whose sum is σ = 4832336880. Its totient is φ = 881532288.

The previous prime is 2213132231. The next prime is 2213132237. The reversal of 2213132236 is 6322313122.

It is a self number, because there is not a number n which added to its sum of digits gives 2213132236.

It is not an unprimeable number, because it can be changed into a prime (2213132231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191766 + ... + 202978.

It is an arithmetic number, because the mean of its divisors is an integer number (67115790).

Almost surely, 2^2213132236 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 2213132236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2416168440).

2213132236 is an abundant number, since it is smaller than the sum of its proper divisors (2619204644).

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

2213132236 is a wasteful number, since it uses less digits than its factorization.

2213132236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11303 (or 11294 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 2213132236 is about 47043.9394183778. The cubic root of 2213132236 is about 1303.1741441371.

Adding to 2213132236 its reverse (6322313122), we get a palindrome (8535445358).

The spelling of 2213132236 in words is "two billion, two hundred thirteen million, one hundred thirty-two thousand, two hundred thirty-six".