135122205132 has 120 divisors (see below), whose sum is σ = 369801121536. Its totient is φ = 42941381472.

The previous prime is 135122205131. The next prime is 135122205139. The reversal of 135122205132 is 231502221531.

135122205132 is a `hidden beast` number, since 1 + 3 + 5 + 122 + 20 + 513 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 135122205096 and 135122205105.

It is not an unprimeable number, because it can be changed into a prime (135122205131) 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 39 ways as a sum of consecutive naturals, for example, 2258233 + ... + 2317295.

Almost surely, 2^135122205132 is an apocalyptic number.

135122205132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135122205132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184900560768).

135122205132 is an abundant number, since it is smaller than the sum of its proper divisors (234678916404).

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

135122205132 is a wasteful number, since it uses less digits than its factorization.

135122205132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59409 (or 59398 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 135122205132 its reverse (231502221531), we get a palindrome (366624426663).

The spelling of 135122205132 in words is "one hundred thirty-five billion, one hundred twenty-two million, two hundred five thousand, one hundred thirty-two".