12040212 has 12 divisors (see below), whose sum is σ = 28093856. Its totient is φ = 4013400.

The previous prime is 12040211. The next prime is 12040213. The reversal of 12040212 is 21204021.

12040212 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12040211) and next prime (12040213).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1003351 = 12040212 / (1 + 2 + 0 + 4 + 0 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501664 + ... + 501687.

Almost surely, 2^12040212 is an apocalyptic number.

12040212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12040212 is an abundant number, since it is smaller than the sum of its proper divisors (16053644).

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

12040212 is a wasteful number, since it uses less digits than its factorization.

12040212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003358 (or 1003356 counting only the distinct ones).

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

The square root of 12040212 is about 3469.9008631372. The cubic root of 12040212 is about 229.1982925536.

Adding to 12040212 its reverse (21204021), we get a palindrome (33244233).

It can be divided in two parts, 1204021 and 2, that multiplied together give a palindrome (2408042).

The spelling of 12040212 in words is "twelve million, forty thousand, two hundred twelve".