5131222235421 has 8 divisors (see below), whose sum is σ = 6859971819360. Its totient is φ = 3411643737552.

The previous prime is 5131222235387. The next prime is 5131222235453. The reversal of 5131222235421 is 1245322221315.

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

It is not a de Polignac number, because 5131222235421 - 2⁶ = 5131222235357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131224235421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2292770211 + ... + 2292772448.

It is an arithmetic number, because the mean of its divisors is an integer number (857496477420).

Almost surely, 2^{5131222235421} is an apocalyptic number.

It is an amenable number.

5131222235421 is a deficient number, since it is larger than the sum of its proper divisors (1728749583939).

5131222235421 is a wasteful number, since it uses less digits than its factorization.

5131222235421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4585543035.

The product of its digits is 28800, while the sum is 33.

Adding to 5131222235421 its reverse (1245322221315), we get a palindrome (6376544456736).

The spelling of 5131222235421 in words is "five trillion, one hundred thirty-one billion, two hundred twenty-two million, two hundred thirty-five thousand, four hundred twenty-one".