1212076869120 has 720 divisors, whose sum is σ = 4813152376032. Its totient is φ = 280791613440.

The previous prime is 1212076869067. The next prime is 1212076869127. The reversal of 1212076869120 is 219686702121.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212076869127) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 66184765 + ... + 66203075.

Almost surely, 2^{1212076869120} is an apocalyptic number.

1212076869120 is a gapful number since it is divisible by the number (10) 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 1212076869120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2406576188016).

1212076869120 is an abundant number, since it is smaller than the sum of its proper divisors (3601075506912).

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

1212076869120 is a wasteful number, since it uses less digits than its factorization.

1212076869120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18383 (or 18351 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 1212076869120 in words is "one trillion, two hundred twelve billion, seventy-six million, eight hundred sixty-nine thousand, one hundred twenty".