1212212102212 has 6 divisors (see below), whose sum is σ = 2121371178878. Its totient is φ = 606106051104.

The previous prime is 1212212102209. The next prime is 1212212102243. The reversal of 1212212102212 is 2122012122121.

It can be written as a sum of positive squares in only one way, i.e., 818109396036 + 394102706176 = 904494^2 + 627776^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1212212102212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151526512773 + ... + 151526512780.

Almost surely, 2^{1212212102212} is an apocalyptic number.

It is an amenable number.

1212212102212 is a deficient number, since it is larger than the sum of its proper divisors (909159076666).

1212212102212 is a wasteful number, since it uses less digits than its factorization.

1212212102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303053025557 (or 303053025555 counting only the distinct ones).

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

Adding to 1212212102212 its reverse (2122012122121), we get a palindrome (3334224224333).

The spelling of 1212212102212 in words is "one trillion, two hundred twelve billion, two hundred twelve million, one hundred two thousand, two hundred twelve".