131222130000 has 400 divisors, whose sum is σ = 476054113920. Its totient is φ = 30894336000.

The previous prime is 131222129981. The next prime is 131222130001. The reversal of 131222130000 is 31222131.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222130001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8962686 + ... + 8977314.

Almost surely, 2^131222130000 is an apocalyptic number.

131222130000 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 131222130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238027056960).

131222130000 is an abundant number, since it is smaller than the sum of its proper divisors (344831983920).

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

131222130000 is a wasteful number, since it uses less digits than its factorization.

131222130000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14696 (or 14675 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 131222130000 its reverse (31222131), we get a palindrome (131253352131).

The spelling of 131222130000 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred thirty thousand".