131112222 has 8 divisors (see below), whose sum is σ = 262224456. Its totient is φ = 43704072.

The previous prime is 131112199. The next prime is 131112227. The reversal of 131112222 is 222211131.

It is a sphenic number, since it is the product of 3 distinct primes.

131112222 is an admirable number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131112227) 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, 10926013 + ... + 10926024.

It is an arithmetic number, because the mean of its divisors is an integer number (32778057).

Almost surely, 2^131112222 is an apocalyptic number.

131112222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131112222 is a wasteful number, since it uses less digits than its factorization.

131112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21852042.

The product of its digits is 48, while the sum is 15.

The square root of 131112222 is about 11450.4245336145. The cubic root of 131112222 is about 508.0202913134.

Adding to 131112222 its reverse (222211131), we get a palindrome (353323353).

The spelling of 131112222 in words is "one hundred thirty-one million, one hundred twelve thousand, two hundred twenty-two".