134212122 has 72 divisors (see below), whose sum is σ = 324166752. Its totient is φ = 39798000.

The previous prime is 134212109. The next prime is 134212151. The reversal of 134212122 is 221212431.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 134212095 and 134212104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 888747 + ... + 888897.

It is an arithmetic number, because the mean of its divisors is an integer number (4502316).

Almost surely, 2^134212122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134212122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162083376).

134212122 is an abundant number, since it is smaller than the sum of its proper divisors (189954630).

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

134212122 is a wasteful number, since it uses less digits than its factorization.

134212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 234 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 134212122 is about 11584.9955545956. The cubic root of 134212122 is about 511.9928715031.

Adding to 134212122 its reverse (221212431), we get a palindrome (355424553).

The spelling of 134212122 in words is "one hundred thirty-four million, two hundred twelve thousand, one hundred twenty-two".