122135697852 has 96 divisors (see below), whose sum is σ = 337656883200. Its totient is φ = 33619525632.

The previous prime is 122135697833. The next prime is 122135697877. The reversal of 122135697852 is 258796531221.

It is a junction number, because it is equal to n+sod(n) for n = 122135697795 and 122135697804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1073724 + ... + 1182012.

It is an arithmetic number, because the mean of its divisors is an integer number (3517259200).

Almost surely, 2^122135697852 is an apocalyptic number.

122135697852 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 122135697852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168828441600).

122135697852 is an abundant number, since it is smaller than the sum of its proper divisors (215521185348).

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

122135697852 is a wasteful number, since it uses less digits than its factorization.

122135697852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108795 (or 108793 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 51.

The spelling of 122135697852 in words is "one hundred twenty-two billion, one hundred thirty-five million, six hundred ninety-seven thousand, eight hundred fifty-two".