122650857280 has 336 divisors, whose sum is σ = 346186353600. Its totient is φ = 41262735360.

The previous prime is 122650857211. The next prime is 122650857311. The reversal of 122650857280 is 82758056221.

It is a self number, because there is not a number n which added to its sum of digits gives 122650857280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 249797835 + ... + 249798325.

Almost surely, 2^122650857280 is an apocalyptic number.

122650857280 is a gapful number since it is divisible by the number (10) 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 122650857280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173093176800).

122650857280 is an abundant number, since it is smaller than the sum of its proper divisors (223535496320).

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

122650857280 is a wasteful number, since it uses less digits than its factorization.

122650857280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 122650857280 in words is "one hundred twenty-two billion, six hundred fifty million, eight hundred fifty-seven thousand, two hundred eighty".