1212012112112 has 10 divisors (see below), whose sum is σ = 2348273467248. Its totient is φ = 606006056048.

The previous prime is 1212012112049. The next prime is 1212012112121. The reversal of 1212012112112 is 2112112102121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37875378488 + ... + 37875378519.

Almost surely, 2^{1212012112112} is an apocalyptic number.

It is an amenable number.

1212012112112 is a deficient number, since it is larger than the sum of its proper divisors (1136261355136).

1212012112112 is an equidigital number, since it uses as much as digits as its factorization.

1212012112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75750757015 (or 75750757009 counting only the distinct ones).

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

Adding to 1212012112112 its reverse (2112112102121), we get a palindrome (3324124214233).

Subtracting 1212012112112 from its reverse (2112112102121), we obtain a palindrome (900099990009).

The spelling of 1212012112112 in words is "one trillion, two hundred twelve billion, twelve million, one hundred twelve thousand, one hundred twelve".