1201132185620 has 12 divisors (see below), whose sum is σ = 2522377589844. Its totient is φ = 480452874240.

The previous prime is 1201132185619. The next prime is 1201132185623. The reversal of 1201132185620 is 265812311021.

It can be written as a sum of positive squares in 2 ways, for example, as 357357666436 + 843774519184 = 597794^2 + 918572^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201132185623) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 30028304621 + ... + 30028304660.

It is an arithmetic number, because the mean of its divisors is an integer number (210198132487).

Almost surely, 2^{1201132185620} is an apocalyptic number.

1201132185620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201132185620 is an abundant number, since it is smaller than the sum of its proper divisors (1321245404224).

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

1201132185620 is a wasteful number, since it uses less digits than its factorization.

1201132185620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60056609290 (or 60056609288 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

Adding to 1201132185620 its reverse (265812311021), we get a palindrome (1466944496641).

The spelling of 1201132185620 in words is "one trillion, two hundred one billion, one hundred thirty-two million, one hundred eighty-five thousand, six hundred twenty".