122012144145 has 12 divisors (see below), whose sum is σ = 211487716596. Its totient is φ = 65073143520.

The previous prime is 122012144101. The next prime is 122012144173. The reversal of 122012144145 is 541441210221.

122012144145 is a `hidden beast` number, since 1 + 220 + 1 + 21 + 4 + 414 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 35228286864 + 86783857281 = 187692^2 + 294591^2 .

It is not a de Polignac number, because 122012144145 - 2⁹ = 122012143633 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1355690446 + ... + 1355690535.

It is an arithmetic number, because the mean of its divisors is an integer number (17623976383).

Almost surely, 2^122012144145 is an apocalyptic number.

122012144145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122012144145 is a deficient number, since it is larger than the sum of its proper divisors (89475572451).

122012144145 is a wasteful number, since it uses less digits than its factorization.

122012144145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711380992 (or 2711380989 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 122012144145 its reverse (541441210221), we get a palindrome (663453354366).

The spelling of 122012144145 in words is "one hundred twenty-two billion, twelve million, one hundred forty-four thousand, one hundred forty-five".