131111222000 has 80 divisors (see below), whose sum is σ = 345847623264. Its totient is φ = 47676800000.

The previous prime is 131111221987. The next prime is 131111222023. The reversal of 131111222000 is 222111131.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2957801 + ... + 3001800.

Almost surely, 2^131111222000 is an apocalyptic number.

131111222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131111222000 is an abundant number, since it is smaller than the sum of its proper divisors (214736401264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131111222000 is a wasteful number, since it uses less digits than its factorization.

131111222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5959635 (or 5959619 counting only the distinct ones).

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

Adding to 131111222000 its reverse (222111131), we get a palindrome (131333333131).

The spelling of 131111222000 in words is "one hundred thirty-one billion, one hundred eleven million, two hundred twenty-two thousand".