131222 has 24 divisors (see below), whose sum is σ = 248976. Its totient is φ = 51408.

The previous prime is 131221. The next prime is 131231. The reversal of 131222 is 222131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1223 + ... + 1325.

It is an arithmetic number, because the mean of its divisors is an integer number (10374).

2¹³¹²²² is an apocalyptic number.

131222 is a deficient number, since it is larger than the sum of its proper divisors (117754).

131222 is a wasteful number, since it uses less digits than its factorization.

131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 125 counting only the distinct ones).

The product of its digits is 24, while the sum is 11.

The square root of 131222 is about 362.2457729222. The cubic root of 131222 is about 50.8162037300.

Adding to 131222 its reverse (222131), we get a palindrome (353353).

Subtracting 131222 from its reverse (222131), we obtain a palindrome (90909).

It can be divided in two parts, 13122 and 2, that multiplied together give a square (26244 = 162²).

The spelling of 131222 in words is "one hundred thirty-one thousand, two hundred twenty-two".