2131122012132 has 96 divisors (see below), whose sum is σ = 5259151497600. Its totient is φ = 669797793792.

The previous prime is 2131122012127. The next prime is 2131122012259. The reversal of 2131122012132 is 2312102211312.

It is a junction number, because it is equal to n+sod(n) for n = 2131122012099 and 2131122012108.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139017844 + ... + 139033172.

It is an arithmetic number, because the mean of its divisors is an integer number (54782828100).

Almost surely, 2^{2131122012132} 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 2131122012132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2629575748800).

2131122012132 is an abundant number, since it is smaller than the sum of its proper divisors (3128029485468).

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

2131122012132 is a wasteful number, since it uses less digits than its factorization.

2131122012132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18205 (or 18203 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2131122012132 its reverse (2312102211312), we get a palindrome (4443224223444).

The spelling of 2131122012132 in words is "two trillion, one hundred thirty-one billion, one hundred twenty-two million, twelve thousand, one hundred thirty-two".