1212122000112 has 80 divisors (see below), whose sum is σ = 3190419347712. Its totient is φ = 396461260800.

The previous prime is 1212122000099. The next prime is 1212122000113. The reversal of 1212122000112 is 2110002212121.

It is a junction number, because it is equal to n+sod(n) for n = 1212122000091 and 1212122000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212122000113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93237 + ... + 1559787.

Almost surely, 2^{1212122000112} is an apocalyptic number.

1212122000112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212122000112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1595209673856).

1212122000112 is an abundant number, since it is smaller than the sum of its proper divisors (1978297347600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212122000112 is a wasteful number, since it uses less digits than its factorization.

1212122000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466886 (or 1466880 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212122000112 its reverse (2110002212121), we get a palindrome (3322124212233).

The spelling of 1212122000112 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twelve", and thus it is an aban number.