31612341231222 has 8 divisors (see below), whose sum is σ = 63224682462456. Its totient is φ = 10537447077072.

The previous prime is 31612341231221. The next prime is 31612341231241. The reversal of 31612341231222 is 22213214321613.

It is a happy number.

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

31612341231222 is an admirable number.

It is a super-2 number, since 2×31612341231222² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31612341231221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2634361769263 + ... + 2634361769274.

It is an arithmetic number, because the mean of its divisors is an integer number (7903085307807).

Almost surely, 2^{31612341231222} is an apocalyptic number.

31612341231222 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.

31612341231222 is a wasteful number, since it uses less digits than its factorization.

31612341231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5268723538542.

The product of its digits is 20736, while the sum is 33.

Adding to 31612341231222 its reverse (22213214321613), we get a palindrome (53825555552835).

The spelling of 31612341231222 in words is "thirty-one trillion, six hundred twelve billion, three hundred forty-one million, two hundred thirty-one thousand, two hundred twenty-two".