122208660 has 144 divisors (see below), whose sum is σ = 442181376. Its totient is φ = 26712576.

The previous prime is 122208649. The next prime is 122208719. The reversal of 122208660 is 66802221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26872 + ... + 31088.

It is an arithmetic number, because the mean of its divisors is an integer number (3070704).

Almost surely, 2^122208660 is an apocalyptic number.

122208660 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 122208660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221090688).

122208660 is an abundant number, since it is smaller than the sum of its proper divisors (319972716).

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

122208660 is a wasteful number, since it uses less digits than its factorization.

122208660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262 (or 4257 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 122208660 is about 11054.8025762562. The cubic root of 122208660 is about 496.2501610525.

The spelling of 122208660 in words is "one hundred twenty-two million, two hundred eight thousand, six hundred sixty".