1212000001112 has 8 divisors (see below), whose sum is σ = 2272500002100. Its totient is φ = 606000000552.

The previous prime is 1212000001109. The next prime is 1212000001141. The reversal of 1212000001112 is 2111000002121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1212000001093 and 1212000001102.

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, 75750000062 + ... + 75750000077.

Almost surely, 2^{1212000001112} is an apocalyptic number.

It is an amenable number.

1212000001112 is a deficient number, since it is larger than the sum of its proper divisors (1060500000988).

1212000001112 is a wasteful number, since it uses less digits than its factorization.

1212000001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151500000145 (or 151500000141 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1212000001112 its reverse (2111000002121), we get a palindrome (3323000003233).

The spelling of 1212000001112 in words is "one trillion, two hundred twelve billion, one thousand, one hundred twelve".