2131224556235 has 4 divisors (see below), whose sum is σ = 2557469467488. Its totient is φ = 1704979644984.

The previous prime is 2131224556213. The next prime is 2131224556297. The reversal of 2131224556235 is 5326554221312.

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

It is a cyclic number.

It is not a de Polignac number, because 2131224556235 - 2²⁰ = 2131223507659 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131224556192 and 2131224556201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213122455619 + ... + 213122455628.

It is an arithmetic number, because the mean of its divisors is an integer number (639367366872).

Almost surely, 2^{2131224556235} is an apocalyptic number.

2131224556235 is a deficient number, since it is larger than the sum of its proper divisors (426244911253).

2131224556235 is an equidigital number, since it uses as much as digits as its factorization.

2131224556235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426244911252.

The product of its digits is 432000, while the sum is 41.

Adding to 2131224556235 its reverse (5326554221312), we get a palindrome (7457778777547).

The spelling of 2131224556235 in words is "two trillion, one hundred thirty-one billion, two hundred twenty-four million, five hundred fifty-six thousand, two hundred thirty-five".