131142422220220 has 48 divisors (see below), whose sum is σ = 277634210112000. Its totient is φ = 52032804986880.

The previous prime is 131142422220193. The next prime is 131142422220221. The reversal of 131142422220220 is 22022224241131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131142422220221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47850885 + ... + 50517244.

It is an arithmetic number, because the mean of its divisors is an integer number (5784046044000).

Almost surely, 2^{131142422220220} is an apocalyptic number.

131142422220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131142422220220 is an abundant number, since it is smaller than the sum of its proper divisors (146491787891780).

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

131142422220220 is a wasteful number, since it uses less digits than its factorization.

131142422220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98368678 (or 98368676 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 131142422220220 its reverse (22022224241131), we get a palindrome (153164646461351).

The spelling of 131142422220220 in words is "one hundred thirty-one trillion, one hundred forty-two billion, four hundred twenty-two million, two hundred twenty thousand, two hundred twenty".