12042012 has 24 divisors (see below), whose sum is σ = 29005312. Its totient is φ = 3884400.

The previous prime is 12041999. The next prime is 12042053. The reversal of 12042012 is 21024021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15814 + ... + 16557.

Almost surely, 2^12042012 is an apocalyptic number.

12042012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12042012 is an abundant number, since it is smaller than the sum of its proper divisors (16963300).

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

12042012 is a wasteful number, since it uses less digits than its factorization.

12042012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32409 (or 32407 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12042012 is about 3470.1602268483. The cubic root of 12042012 is about 229.2097136252.

Adding to 12042012 its reverse (21024021), we get a palindrome (33066033).

Subtracting 12042012 from its reverse (21024021), we obtain a square (8982009 = 2997²).

The spelling of 12042012 in words is "twelve million, forty-two thousand, twelve".