131332022221 has 8 divisors (see below), whose sum is σ = 131533238304. Its totient is φ = 131130926640.

The previous prime is 131332022189. The next prime is 131332022291. The reversal of 131332022221 is 122220233131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131332022221 - 2⁵ = 131332022189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131332022192 and 131332022201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131332022291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2285970 + ... + 2342716.

It is an arithmetic number, because the mean of its divisors is an integer number (16441654788).

Almost surely, 2^131332022221 is an apocalyptic number.

It is an amenable number.

131332022221 is a deficient number, since it is larger than the sum of its proper divisors (201216083).

131332022221 is an equidigital number, since it uses as much as digits as its factorization.

131332022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60251.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131332022221 its reverse (122220233131), we get a palindrome (253552255352).

The spelling of 131332022221 in words is "one hundred thirty-one billion, three hundred thirty-two million, twenty-two thousand, two hundred twenty-one".