131122221032 has 64 divisors (see below), whose sum is σ = 289206590400. Its totient is φ = 55086912000.

The previous prime is 131122221023. The next prime is 131122221103. The reversal of 131122221032 is 230122221131.

It is a junction number, because it is equal to n+sod(n) for n = 131122220995 and 131122221013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887819 + ... + 1024922.

It is an arithmetic number, because the mean of its divisors is an integer number (4518852975).

Almost surely, 2^131122221032 is an apocalyptic number.

It is an amenable number.

131122221032 is an abundant number, since it is smaller than the sum of its proper divisors (158084369368).

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

131122221032 is a wasteful number, since it uses less digits than its factorization.

131122221032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912818 (or 1912814 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 131122221032 its reverse (230122221131), we get a palindrome (361244442163).

Subtracting 131122221032 from its reverse (230122221131), we obtain a palindrome (99000000099).

The spelling of 131122221032 in words is "one hundred thirty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, thirty-two".