131211422 has 8 divisors (see below), whose sum is σ = 197243616. Its totient is φ = 65463552.

The previous prime is 131211407. The next prime is 131211433. The reversal of 131211422 is 224112131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 131211422.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69923 + ... + 71774.

It is an arithmetic number, because the mean of its divisors is an integer number (24655452).

Almost surely, 2^131211422 is an apocalyptic number.

131211422 is a deficient number, since it is larger than the sum of its proper divisors (66032194).

131211422 is a wasteful number, since it uses less digits than its factorization.

131211422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142162.

The product of its digits is 96, while the sum is 17.

The square root of 131211422 is about 11454.7554316974. The cubic root of 131211422 is about 508.1483823681.

Adding to 131211422 its reverse (224112131), we get a palindrome (355323553).

The spelling of 131211422 in words is "one hundred thirty-one million, two hundred eleven thousand, four hundred twenty-two".