1311022122 has 8 divisors (see below), whose sum is σ = 2622044256. Its totient is φ = 437007372.

The previous prime is 1311022061. The next prime is 1311022123. The reversal of 1311022122 is 2212201131.

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

1311022122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1311022123) by changing a digit.

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, 109251838 + ... + 109251849.

It is an arithmetic number, because the mean of its divisors is an integer number (327755532).

Almost surely, 2^1311022122 is an apocalyptic number.

1311022122 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.

1311022122 is a wasteful number, since it uses less digits than its factorization.

1311022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218503692.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1311022122 is about 36208.0394663948. The cubic root of 1311022122 is about 1094.4686849200.

Adding to 1311022122 its reverse (2212201131), we get a palindrome (3523223253).

The spelling of 1311022122 in words is "one billion, three hundred eleven million, twenty-two thousand, one hundred twenty-two".