131222231011 has 8 divisors (see below), whose sum is σ = 132458554800. Its totient is φ = 129986497440.

The previous prime is 131222230999. The next prime is 131222231017. The reversal of 131222231011 is 110132222131.

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 131222231011 - 2²⁷ = 131088013283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131222231011.

It is not an unprimeable number, because it can be changed into a prime (131222231017) 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, 305721 + ... + 596581.

It is an arithmetic number, because the mean of its divisors is an integer number (16557319350).

Almost surely, 2^131222231011 is an apocalyptic number.

131222231011 is a deficient number, since it is larger than the sum of its proper divisors (1236323789).

131222231011 is a wasteful number, since it uses less digits than its factorization.

131222231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295109.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131222231011 its reverse (110132222131), we get a palindrome (241354453142).

The spelling of 131222231011 in words is "one hundred thirty-one billion, two hundred twenty-two million, two hundred thirty-one thousand, eleven".