131102112301221 has 16 divisors (see below), whose sum is σ = 174837345384960. Its totient is φ = 87384145252800.

The previous prime is 131102112301151. The next prime is 131102112301247. The reversal of 131102112301221 is 122103211201131.

It is not a de Polignac number, because 131102112301221 - 2¹³ = 131102112293029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131102112308221) 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, 361550635 + ... + 361913063.

It is an arithmetic number, because the mean of its divisors is an integer number (10927334086560).

Almost surely, 2^{131102112301221} is an apocalyptic number.

It is an amenable number.

131102112301221 is a deficient number, since it is larger than the sum of its proper divisors (43735233083739).

131102112301221 is a wasteful number, since it uses less digits than its factorization.

131102112301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385916.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 131102112301221 its reverse (122103211201131), we get a palindrome (253205323502352).

The spelling of 131102112301221 in words is "one hundred thirty-one trillion, one hundred two billion, one hundred twelve million, three hundred one thousand, two hundred twenty-one".