12012111012212 has 12 divisors (see below), whose sum is σ = 21417820578756. Its totient is φ = 5892733704000.

The previous prime is 12012111012137. The next prime is 12012111012221. The reversal of 12012111012212 is 21221011121021.

It can be written as a sum of positive squares in 2 ways, for example, as 10901856825616 + 1110254186596 = 3301796^2 + 1053686^2 .

It is a congruent number.

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, 28330450289 + ... + 28330450712.

It is an arithmetic number, because the mean of its divisors is an integer number (1784818381563).

Almost surely, 2^{12012111012212} is an apocalyptic number.

It is an amenable number.

12012111012212 is a deficient number, since it is larger than the sum of its proper divisors (9405709566544).

12012111012212 is a wasteful number, since it uses less digits than its factorization.

12012111012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56660901058 (or 56660901056 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12012111012212 its reverse (21221011121021), we get a palindrome (33233122133233).

The spelling of 12012111012212 in words is "twelve trillion, twelve billion, one hundred eleven million, twelve thousand, two hundred twelve".