31212102211322 has 32 divisors (see below), whose sum is σ = 48199687928784. Its totient is φ = 15149517926400.

The previous prime is 31212102211321. The next prime is 31212102211349. The reversal of 31212102211322 is 22311220121213.

It can be written as a sum of positive squares in 8 ways, for example, as 325973625481 + 30886128585841 = 570941^2 + 5557529^2 .

It is not an unprimeable number, because it can be changed into a prime (31212102211321) 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 15 ways as a sum of consecutive naturals, for example, 13204322 + ... + 15387602.

Almost surely, 2^{31212102211322} is an apocalyptic number.

31212102211322 is a deficient number, since it is larger than the sum of its proper divisors (16987585717462).

31212102211322 is a wasteful number, since it uses less digits than its factorization.

31212102211322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184194.

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

Adding to 31212102211322 its reverse (22311220121213), we get a palindrome (53523322332535).

The spelling of 31212102211322 in words is "thirty-one trillion, two hundred twelve billion, one hundred two million, two hundred eleven thousand, three hundred twenty-two".