1522121105105 has 12 divisors (see below), whose sum is σ = 1870010991540. Its totient is φ = 1189378344672.

The previous prime is 1522121105101. The next prime is 1522121105177. The reversal of 1522121105105 is 5015011212251.

It can be written as a sum of positive squares in 2 ways, for example, as 960256925329 + 561864179776 = 979927^2 + 749576^2 .

It is not a de Polignac number, because 1522121105105 - 2² = 1522121105101 is a prime.

It is a super-2 number, since 2×1522121105105² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1522121105101) 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 11 ways as a sum of consecutive naturals, for example, 82312070 + ... + 82330559.

It is an arithmetic number, because the mean of its divisors is an integer number (155834249295).

Almost surely, 2^{1522121105105} is an apocalyptic number.

It is an amenable number.

1522121105105 is a deficient number, since it is larger than the sum of its proper divisors (347889886435).

1522121105105 is an equidigital number, since it uses as much as digits as its factorization.

1522121105105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164642720 (or 164642677 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 26.

Adding to 1522121105105 its reverse (5015011212251), we get a palindrome (6537132317356).

The spelling of 1522121105105 in words is "one trillion, five hundred twenty-two billion, one hundred twenty-one million, one hundred five thousand, one hundred five".