1123222021131 has 8 divisors (see below), whose sum is σ = 1711576413184. Its totient is φ = 641841154920.

The previous prime is 1123222021121. The next prime is 1123222021213. The reversal of 1123222021131 is 1311202223211.

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

It is not a de Polignac number, because 1123222021131 - 2⁶ = 1123222021067 is a prime.

It is a super-2 number, since 2×1123222021131² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 53486762911 = 1123222021131 / (1 + 1 + 2 + 3 + 2 + 2 + 2 + 0 + 2 + 1 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123222021098 and 1123222021107.

It is not an unprimeable number, because it can be changed into a prime (1123222021111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26743381435 + ... + 26743381476.

It is an arithmetic number, because the mean of its divisors is an integer number (213947051648).

Almost surely, 2^{1123222021131} is an apocalyptic number.

1123222021131 is a deficient number, since it is larger than the sum of its proper divisors (588354392053).

1123222021131 is an equidigital number, since it uses as much as digits as its factorization.

1123222021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53486762921.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1123222021131 its reverse (1311202223211), we get a palindrome (2434424244342).

The spelling of 1123222021131 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-two million, twenty-one thousand, one hundred thirty-one".