1202112120552 has 128 divisors (see below), whose sum is σ = 3562323148800. Its totient is φ = 330750782208.

The previous prime is 1202112120529. The next prime is 1202112120553. The reversal of 1202112120552 is 2550212112021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1202112120553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1543863 + ... + 2188089.

It is an arithmetic number, because the mean of its divisors is an integer number (27830649600).

Almost surely, 2^{1202112120552} is an apocalyptic number.

1202112120552 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 1202112120552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1781161574400).

1202112120552 is an abundant number, since it is smaller than the sum of its proper divisors (2360211028248).

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

1202112120552 is a wasteful number, since it uses less digits than its factorization.

1202112120552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644655 (or 644651 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 1202112120552 its reverse (2550212112021), we get a palindrome (3752324232573).

The spelling of 1202112120552 in words is "one trillion, two hundred two billion, one hundred twelve million, one hundred twenty thousand, five hundred fifty-two".