1311022112422 has 16 divisors (see below), whose sum is σ = 2145326487552. Its totient is φ = 595914259720.

The previous prime is 1311022112401. The next prime is 1311022112429. The reversal of 1311022112422 is 2242112201131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1311022112393 and 1311022112402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311022112429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5237943 + ... + 5482525.

It is an arithmetic number, because the mean of its divisors is an integer number (134082905472).

Almost surely, 2^{1311022112422} is an apocalyptic number.

1311022112422 is a deficient number, since it is larger than the sum of its proper divisors (834304375130).

1311022112422 is a wasteful number, since it uses less digits than its factorization.

1311022112422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488243.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1311022112422 its reverse (2242112201131), we get a palindrome (3553134313553).

The spelling of 1311022112422 in words is "one trillion, three hundred eleven billion, twenty-two million, one hundred twelve thousand, four hundred twenty-two".