131303112022221 has 16 divisors (see below), whose sum is σ = 177192940237824. Its totient is φ = 86474498735664.

The previous prime is 131303112022219. The next prime is 131303112022267. The reversal of 131303112022221 is 122220211303131.

It is not a de Polignac number, because 131303112022221 - 2¹ = 131303112022219 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131303112022191 and 131303112022200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131303112022021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15658231 + ... + 22534116.

It is an arithmetic number, because the mean of its divisors is an integer number (11074558764864).

Almost surely, 2^{131303112022221} is an apocalyptic number.

It is an amenable number.

131303112022221 is a deficient number, since it is larger than the sum of its proper divisors (45889828215603).

131303112022221 is a wasteful number, since it uses less digits than its factorization.

131303112022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38206240.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131303112022221 its reverse (122220211303131), we get a palindrome (253523323325352).

The spelling of 131303112022221 in words is "one hundred thirty-one trillion, three hundred three billion, one hundred twelve million, twenty-two thousand, two hundred twenty-one".