2122122123131 has 4 divisors (see below), whose sum is σ = 2122941161664. Its totient is φ = 2121303084600.

The previous prime is 2122122123059. The next prime is 2122122123157. The reversal of 2122122123131 is 1313212212212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122122123131 is a prime.

It is a super-2 number, since 2×2122122123131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122122123097 and 2122122123106.

It is not an unprimeable number, because it can be changed into a prime (2122122123031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409515380 + ... + 409520561.

It is an arithmetic number, because the mean of its divisors is an integer number (530735290416).

Almost surely, 2^{2122122123131} is an apocalyptic number.

2122122123131 is a deficient number, since it is larger than the sum of its proper divisors (819038533).

2122122123131 is an equidigital number, since it uses as much as digits as its factorization.

2122122123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819038532.

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

Adding to 2122122123131 its reverse (1313212212212), we get a palindrome (3435334335343).

The spelling of 2122122123131 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred twenty-three thousand, one hundred thirty-one".