67131222 has 8 divisors (see below), whose sum is σ = 134262456. Its totient is φ = 22377072.

The previous prime is 67131193. The next prime is 67131223. The reversal of 67131222 is 22213176.

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

67131222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 67131192 and 67131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67131223) 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, 5594263 + ... + 5594274.

It is an arithmetic number, because the mean of its divisors is an integer number (16782807).

Almost surely, 2^67131222 is an apocalyptic number.

67131222 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.

67131222 is a wasteful number, since it uses less digits than its factorization.

67131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11188542.

The product of its digits is 1008, while the sum is 24.

The square root of 67131222 is about 8193.3645103828. The cubic root of 67131222 is about 406.4197935766.

Adding to 67131222 its reverse (22213176), we get a palindrome (89344398).

The spelling of 67131222 in words is "sixty-seven million, one hundred thirty-one thousand, two hundred twenty-two".