122698528180 has 24 divisors (see below), whose sum is σ = 257763273768. Its totient is φ = 49061056128.

The previous prime is 122698528163. The next prime is 122698528193. The reversal of 122698528180 is 81825896221.

It can be written as a sum of positive squares in 4 ways, for example, as 4750242084 + 117948286096 = 68922^2 + 343436^2 .

It is a super-2 number, since 2×122698528180² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092319 + ... + 1199398.

It is an arithmetic number, because the mean of its divisors is an integer number (10740136407).

Almost surely, 2^122698528180 is an apocalyptic number.

122698528180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122698528180 is an abundant number, since it is smaller than the sum of its proper divisors (135064745588).

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

122698528180 is a wasteful number, since it uses less digits than its factorization.

122698528180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294403 (or 2294401 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 122698528180 in words is "one hundred twenty-two billion, six hundred ninety-eight million, five hundred twenty-eight thousand, one hundred eighty".