12012442 has 16 divisors (see below), whose sum is σ = 19673640. Its totient is φ = 5467392.

The previous prime is 12012439. The next prime is 12012443. The reversal of 12012442 is 24421021.

It can be written as a sum of positive squares in 4 ways, for example, as 10055241 + 1957201 = 3171^2 + 1399^2 .

It is not an unprimeable number, because it can be changed into a prime (12012443) 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, 1267 + ... + 5062.

Almost surely, 2^12012442 is an apocalyptic number.

12012442 is a deficient number, since it is larger than the sum of its proper divisors (7661198).

12012442 is a wasteful number, since it uses less digits than its factorization.

12012442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6417.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 12012442 is about 3465.8969978925. The cubic root of 12012442 is about 229.0219463721.

Adding to 12012442 its reverse (24421021), we get a palindrome (36433463).

The spelling of 12012442 in words is "twelve million, twelve thousand, four hundred forty-two".