122801159880 has 576 divisors, whose sum is σ = 493651117440. Its totient is φ = 26306187264.

The previous prime is 122801159827. The next prime is 122801159891. The reversal of 122801159880 is 88951108221.

It is a super-2 number, since 2×122801159880² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 84865317 + ... + 84866763.

It is an arithmetic number, because the mean of its divisors is an integer number (857033190).

Almost surely, 2^122801159880 is an apocalyptic number.

122801159880 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 122801159880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246825558720).

122801159880 is an abundant number, since it is smaller than the sum of its proper divisors (370849957560).

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

122801159880 is a wasteful number, since it uses less digits than its factorization.

122801159880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778 (or 1764 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 45.

The spelling of 122801159880 in words is "one hundred twenty-two billion, eight hundred one million, one hundred fifty-nine thousand, eight hundred eighty".