122311660 has 24 divisors (see below), whose sum is σ = 258708240. Its totient is φ = 48571584.

The previous prime is 122311639. The next prime is 122311667. The reversal of 122311660 is 66113221.

It is not an unprimeable number, because it can be changed into a prime (122311667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19219 + ... + 24778.

It is an arithmetic number, because the mean of its divisors is an integer number (10779510).

Almost surely, 2^122311660 is an apocalyptic number.

122311660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122311660 is an abundant number, since it is smaller than the sum of its proper divisors (136396580).

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

122311660 is a wasteful number, since it uses less digits than its factorization.

122311660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44145 (or 44143 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 122311660 is about 11059.4602038255. The cubic root of 122311660 is about 496.3895385549.

Adding to 122311660 its reverse (66113221), we get a palindrome (188424881).

The spelling of 122311660 in words is "one hundred twenty-two million, three hundred eleven thousand, six hundred sixty".