122801637532 has 72 divisors (see below), whose sum is σ = 253455652800. Its totient is φ = 51901065216.

The previous prime is 122801637527. The next prime is 122801637571. The reversal of 122801637532 is 235736108221.

It is a super-2 number, since 2×122801637532² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 14380368 + ... + 14388904.

It is an arithmetic number, because the mean of its divisors is an integer number (3520217400).

Almost surely, 2^122801637532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122801637532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126727826400).

122801637532 is an abundant number, since it is smaller than the sum of its proper divisors (130654015268).

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

122801637532 is a wasteful number, since it uses less digits than its factorization.

122801637532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9563 (or 9554 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 122801637532 in words is "one hundred twenty-two billion, eight hundred one million, six hundred thirty-seven thousand, five hundred thirty-two".