1522121113231 has 4 divisors (see below), whose sum is σ = 1574608048200. Its totient is φ = 1469634178264.

The previous prime is 1522121113229. The next prime is 1522121113259. The reversal of 1522121113231 is 1323111212251.

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 1522121113231 - 2¹ = 1522121113229 is a prime.

It is a super-2 number, since 2×1522121113231² (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 = 1522121113196 and 1522121113205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522121113031) 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, 26243467441 + ... + 26243467498.

It is an arithmetic number, because the mean of its divisors is an integer number (393652012050).

Almost surely, 2^{1522121113231} is an apocalyptic number.

1522121113231 is a deficient number, since it is larger than the sum of its proper divisors (52486934969).

1522121113231 is an equidigital number, since it uses as much as digits as its factorization.

1522121113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52486934968.

The product of its digits is 720, while the sum is 25.

Adding to 1522121113231 its reverse (1323111212251), we get a palindrome (2845232325482).

The spelling of 1522121113231 in words is "one trillion, five hundred twenty-two billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred thirty-one".