131222227 has 8 divisors (see below), whose sum is σ = 138315600. Its totient is φ = 124147584.

The previous prime is 131222209. The next prime is 131222237. The reversal of 131222227 is 722222131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131222227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131222198 and 131222207.

It is not an unprimeable number, because it can be changed into a prime (131222237) 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, 11103 + ... + 19639.

It is an arithmetic number, because the mean of its divisors is an integer number (17289450).

Almost surely, 2^131222227 is an apocalyptic number.

131222227 is a deficient number, since it is larger than the sum of its proper divisors (7093373).

131222227 is an equidigital number, since it uses as much as digits as its factorization.

131222227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9365.

The product of its digits is 672, while the sum is 22.

The square root of 131222227 is about 11455.2270601678. The cubic root of 131222227 is about 508.1623303219.

Adding to 131222227 its reverse (722222131), we get a palindrome (853444358).

The spelling of 131222227 in words is "one hundred thirty-one million, two hundred twenty-two thousand, two hundred twenty-seven".