1311122422 has 32 divisors (see below), whose sum is σ = 2066137920. Its totient is φ = 623185920.

The previous prime is 1311122419. The next prime is 1311122431. The reversal of 1311122422 is 2242211131.

It is a super-2 number, since 2×1311122422² = 3438084010942292168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311122422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1355383 + ... + 1356349.

It is an arithmetic number, because the mean of its divisors is an integer number (64566810).

Almost surely, 2^1311122422 is an apocalyptic number.

1311122422 is a deficient number, since it is larger than the sum of its proper divisors (755015498).

1311122422 is a wasteful number, since it uses less digits than its factorization.

1311122422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336.

The product of its digits is 192, while the sum is 19.

The square root of 1311122422 is about 36209.4244914221. The cubic root of 1311122422 is about 1094.4965950541.

Adding to 1311122422 its reverse (2242211131), we get a palindrome (3553333553).

The spelling of 1311122422 in words is "one billion, three hundred eleven million, one hundred twenty-two thousand, four hundred twenty-two".