1212120011968 has 112 divisors (see below), whose sum is σ = 2514527945280. Its totient is φ = 578989522944.

The previous prime is 1212120011917. The next prime is 1212120011969. The reversal of 1212120011968 is 8691100212121.

It is not an unprimeable number, because it can be changed into a prime (1212120011969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335115696 + ... + 335119312.

Almost surely, 2^{1212120011968} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212120011968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257263972640).

1212120011968 is an abundant number, since it is smaller than the sum of its proper divisors (1302407933312).

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

1212120011968 is a wasteful number, since it uses less digits than its factorization.

1212120011968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514 (or 5504 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 1212120011968 in words is "one trillion, two hundred twelve billion, one hundred twenty million, eleven thousand, nine hundred sixty-eight".