12072212 has 12 divisors (see below), whose sum is σ = 21697620. Its totient is φ = 5872896.

The previous prime is 12072211. The next prime is 12072241. The reversal of 12072212 is 21227021.

It can be written as a sum of positive squares in 2 ways, for example, as 4857616 + 7214596 = 2204^2 + 2686^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072211) 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, 40637 + ... + 40932.

It is an arithmetic number, because the mean of its divisors is an integer number (1808135).

Almost surely, 2^12072212 is an apocalyptic number.

It is an amenable number.

12072212 is a deficient number, since it is larger than the sum of its proper divisors (9625408).

12072212 is a wasteful number, since it uses less digits than its factorization.

12072212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81610 (or 81608 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 12072212 is about 3474.5088861593. The cubic root of 12072212 is about 229.4011643218.

Adding to 12072212 its reverse (21227021), we get a palindrome (33299233).

The spelling of 12072212 in words is "twelve million, seventy-two thousand, two hundred twelve".