31122231012122 has 8 divisors (see below), whose sum is σ = 47945058586356. Its totient is φ = 15140544816672.

The previous prime is 31122231012109. The next prime is 31122231012133. The reversal of 31122231012122 is 22121013222113.

It can be written as a sum of positive squares in 2 ways, for example, as 31122217255441 + 13756681 = 5578729^2 + 3709^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210285344603 + ... + 210285344750.

Almost surely, 2^{31122231012122} is an apocalyptic number.

31122231012122 is a deficient number, since it is larger than the sum of its proper divisors (16822827574234).

31122231012122 is a wasteful number, since it uses less digits than its factorization.

31122231012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420570689392.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 31122231012122 its reverse (22121013222113), we get a palindrome (53243244234235).

The spelling of 31122231012122 in words is "thirty-one trillion, one hundred twenty-two billion, two hundred thirty-one million, twelve thousand, one hundred twenty-two".