123132001225422 has 128 divisors (see below), whose sum is σ = 289628669657088. Its totient is φ = 34172436038400.

The previous prime is 123132001225397. The next prime is 123132001225423. The reversal of 123132001225422 is 224522100231321.

It is a happy number.

It is a super-2 number, since 2×123132001225422² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123132001225422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123132001225423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 869069647 + ... + 869211317.

It is an arithmetic number, because the mean of its divisors is an integer number (2262723981696).

Almost surely, 2^{123132001225422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123132001225422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144814334828544).

123132001225422 is an abundant number, since it is smaller than the sum of its proper divisors (166496668431666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123132001225422 is a wasteful number, since it uses less digits than its factorization.

123132001225422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146054.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 123132001225422 its reverse (224522100231321), we get a palindrome (347654101456743).

The spelling of 123132001225422 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, one million, two hundred twenty-five thousand, four hundred twenty-two".