131142421443222 has 192 divisors, whose sum is σ = 352360355143680. Its totient is φ = 34417243113408.

The previous prime is 131142421443157. The next prime is 131142421443223. The reversal of 131142421443222 is 222344124241131.

131142421443222 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 4 + 2 + 4 + 214 + 432 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131142421443223) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6593053 + ... + 17485799.

It is an arithmetic number, because the mean of its divisors is an integer number (1835210183040).

Almost surely, 2^{131142421443222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131142421443222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176180177571840).

131142421443222 is an abundant number, since it is smaller than the sum of its proper divisors (221217933700458).

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

131142421443222 is a wasteful number, since it uses less digits than its factorization.

131142421443222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10892935 (or 10892932 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

Adding to 131142421443222 its reverse (222344124241131), we get a palindrome (353486545684353).

The spelling of 131142421443222 in words is "one hundred thirty-one trillion, one hundred forty-two billion, four hundred twenty-one million, four hundred forty-three thousand, two hundred twenty-two".