2213543412 has 36 divisors (see below), whose sum is σ = 5924485476. Its totient is φ = 694444800.

The previous prime is 2213543411. The next prime is 2213543413. The reversal of 2213543412 is 2143453122.

2213543412 is a `hidden beast` number, since 2 + 213 + 5 + 434 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (2213543411) and next prime (2213543413).

It can be written as a sum of positive squares in 2 ways, for example, as 888874596 + 1324668816 = 29814^2 + 36396^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213543411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1807839 + ... + 1809062.

It is an arithmetic number, because the mean of its divisors is an integer number (164569041).

Almost surely, 2^2213543412 is an apocalyptic number.

It is an amenable number.

2213543412 is an abundant number, since it is smaller than the sum of its proper divisors (3710942064).

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

2213543412 is a wasteful number, since it uses less digits than its factorization.

2213543412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616928 (or 3616923 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 2213543412 is about 47048.3093426321. The cubic root of 2213543412 is about 1303.2548443535.

Adding to 2213543412 its reverse (2143453122), we get a palindrome (4356996534).

The spelling of 2213543412 in words is "two billion, two hundred thirteen million, five hundred forty-three thousand, four hundred twelve".