131012220112211 has 4 divisors (see below), whose sum is σ = 135238420761024. Its totient is φ = 126786019463400.

The previous prime is 131012220112201. The next prime is 131012220112229. The reversal of 131012220112211 is 112211022210131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131012220112211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131012220112201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2113100324360 + ... + 2113100324421.

It is an arithmetic number, because the mean of its divisors is an integer number (33809605190256).

Almost surely, 2^{131012220112211} is an apocalyptic number.

131012220112211 is a deficient number, since it is larger than the sum of its proper divisors (4226200648813).

131012220112211 is an equidigital number, since it uses as much as digits as its factorization.

131012220112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4226200648812.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 131012220112211 its reverse (112211022210131), we get a palindrome (243223242322342).

The spelling of 131012220112211 in words is "one hundred thirty-one trillion, twelve billion, two hundred twenty million, one hundred twelve thousand, two hundred eleven".