131000132221 has 8 divisors (see below), whose sum is σ = 149948005824. Its totient is φ = 112110650880.

The previous prime is 131000132189. The next prime is 131000132251. The reversal of 131000132221 is 122231000131.

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 131000132221 - 2⁵ = 131000132189 is a prime.

It is a super-2 number, since 2×131000132221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131000132195 and 131000132204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000132251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14593255 + ... + 14602228.

It is an arithmetic number, because the mean of its divisors is an integer number (18743500728).

Almost surely, 2^131000132221 is an apocalyptic number.

It is an amenable number.

131000132221 is a deficient number, since it is larger than the sum of its proper divisors (18947873603).

131000132221 is an equidigital number, since it uses as much as digits as its factorization.

131000132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29196131.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131000132221 its reverse (122231000131), we get a palindrome (253231132352).

The spelling of 131000132221 in words is "one hundred thirty-one billion, one hundred thirty-two thousand, two hundred twenty-one".