131222100013111 has 4 divisors (see below), whose sum is σ = 132255344895232. Its totient is φ = 130188855130992.

The previous prime is 131222100013099. The next prime is 131222100013153. The reversal of 131222100013111 is 111310001222131.

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

It is a cyclic number.

It is not a de Polignac number, because 131222100013111 - 2¹⁵ = 131222099980343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131222100013181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516622440870 + ... + 516622441123.

It is an arithmetic number, because the mean of its divisors is an integer number (33063836223808).

Almost surely, 2^{131222100013111} is an apocalyptic number.

131222100013111 is a deficient number, since it is larger than the sum of its proper divisors (1033244882121).

131222100013111 is a wasteful number, since it uses less digits than its factorization.

131222100013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033244882120.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 131222100013111 its reverse (111310001222131), we get a palindrome (242532101235242).

The spelling of 131222100013111 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, one hundred million, thirteen thousand, one hundred eleven".