131102100221 has 8 divisors (see below), whose sum is σ = 132335121600. Its totient is φ = 129872597920.

The previous prime is 131102100209. The next prime is 131102100223. The reversal of 131102100221 is 122001201131.

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 131102100221 - 2¹⁴ = 131102083837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131102100196 and 131102100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131102100223) 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, 804881 + ... + 953958.

It is an arithmetic number, because the mean of its divisors is an integer number (16541890200).

Almost surely, 2^131102100221 is an apocalyptic number.

It is an amenable number.

131102100221 is a deficient number, since it is larger than the sum of its proper divisors (1233021379).

131102100221 is a wasteful number, since it uses less digits than its factorization.

131102100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759539.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 131102100221 its reverse (122001201131), we get a palindrome (253103301352).

The spelling of 131102100221 in words is "one hundred thirty-one billion, one hundred two million, one hundred thousand, two hundred twenty-one".