12012100022212 has 6 divisors (see below), whose sum is σ = 21021175038878. Its totient is φ = 6006050011104.

The previous prime is 12012100022207. The next prime is 12012100022213. The reversal of 12012100022212 is 21222000121021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10270845593856 + 1741254428356 = 3204816^2 + 1319566^2 .

It is not an unprimeable number, because it can be changed into a prime (12012100022213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1501512502773 + ... + 1501512502780.

Almost surely, 2^{12012100022212} is an apocalyptic number.

It is an amenable number.

12012100022212 is a deficient number, since it is larger than the sum of its proper divisors (9009075016666).

12012100022212 is a wasteful number, since it uses less digits than its factorization.

12012100022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003025005557 (or 3003025005555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12012100022212 its reverse (21222000121021), we get a palindrome (33234100143233).

The spelling of 12012100022212 in words is "twelve trillion, twelve billion, one hundred million, twenty-two thousand, two hundred twelve".