311222031122 has 8 divisors (see below), whose sum is σ = 477689629296. Its totient is φ = 151992154692.

The previous prime is 311222031103. The next prime is 311222031137. The reversal of 311222031122 is 221130222113.

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

It is a junction number, because it is equal to n+sod(n) for n = 311222031094 and 311222031103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809430328 + ... + 1809430499.

It is an arithmetic number, because the mean of its divisors is an integer number (59711203662).

Almost surely, 2^311222031122 is an apocalyptic number.

311222031122 is a deficient number, since it is larger than the sum of its proper divisors (166467598174).

311222031122 is a wasteful number, since it uses less digits than its factorization.

311222031122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3618860872.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 311222031122 its reverse (221130222113), we get a palindrome (532352253235).

The spelling of 311222031122 in words is "three hundred eleven billion, two hundred twenty-two million, thirty-one thousand, one hundred twenty-two".