12012012212212 has 6 divisors (see below), whose sum is σ = 21021021371378. Its totient is φ = 6006006106104.

The previous prime is 12012012212173. The next prime is 12012012212219. The reversal of 12012012212212 is 21221221021021.

It can be written as a sum of positive squares in only one way, i.e., 10960165056996 + 1051847155216 = 3310614^2 + 1025596^2 .

It is a super-2 number, since 2×12012012212212² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12012012212212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012012212219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1501501526523 + ... + 1501501526530.

Almost surely, 2^{12012012212212} is an apocalyptic number.

It is an amenable number.

12012012212212 is a deficient number, since it is larger than the sum of its proper divisors (9009009159166).

12012012212212 is a wasteful number, since it uses less digits than its factorization.

12012012212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003003053057 (or 3003003053055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12012012212212 its reverse (21221221021021), we get a palindrome (33233233233233).

The spelling of 12012012212212 in words is "twelve trillion, twelve billion, twelve million, two hundred twelve thousand, two hundred twelve".