12012212011012 has 12 divisors (see below), whose sum is σ = 21589516182220. Its totient is φ = 5843778816096.

The previous prime is 12012212010949. The next prime is 12012212011039. The reversal of 12012212011012 is 21011021221021.

It can be written as a sum of positive squares in 2 ways, for example, as 5033812755456 + 6978399255556 = 2243616^2 + 2641666^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40581797187 + ... + 40581797482.

Almost surely, 2^{12012212011012} is an apocalyptic number.

It is an amenable number.

12012212011012 is a deficient number, since it is larger than the sum of its proper divisors (9577304171208).

12012212011012 is a wasteful number, since it uses less digits than its factorization.

12012212011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81163594710 (or 81163594708 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12012212011012 its reverse (21011021221021), we get a palindrome (33023233232033).

The spelling of 12012212011012 in words is "twelve trillion, twelve billion, two hundred twelve million, eleven thousand, twelve".