2215243204 has 12 divisors (see below), whose sum is σ = 3877054524. Its totient is φ = 1107513344.

The previous prime is 2215243189. The next prime is 2215243237. The reversal of 2215243204 is 4023425122.

It can be written as a sum of positive squares in 2 ways, for example, as 161340804 + 2053902400 = 12702^2 + 45320^2 .

It is a super-4 number, since 4×2215243204⁴ (a number of 38 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34572 + ... + 75004.

It is an arithmetic number, because the mean of its divisors is an integer number (323087877).

Almost surely, 2^2215243204 is an apocalyptic number.

It is an amenable number.

2215243204 is a deficient number, since it is larger than the sum of its proper divisors (1661811320).

2215243204 is a wasteful number, since it uses less digits than its factorization.

2215243204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54134 (or 54132 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2215243204 is about 47066.3702020880. The cubic root of 2215243204 is about 1303.5883511570.

Adding to 2215243204 its reverse (4023425122), we get a palindrome (6238668326).

It can be divided in two parts, 22152 and 43204, that added together give a palindrome (65356).

The spelling of 2215243204 in words is "two billion, two hundred fifteen million, two hundred forty-three thousand, two hundred four".