122643661116 has 24 divisors (see below), whose sum is σ = 298610653824. Its totient is φ = 39103775920.

The previous prime is 122643661033. The next prime is 122643661163. The reversal of 122643661116 is 611166346221.

It is a super-2 number, since 2×122643661116² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 222180270 + ... + 222180821.

It is an arithmetic number, because the mean of its divisors is an integer number (12442110576).

Almost surely, 2^122643661116 is an apocalyptic number.

It is an amenable number.

122643661116 is an abundant number, since it is smaller than the sum of its proper divisors (175966992708).

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

122643661116 is a wasteful number, since it uses less digits than its factorization.

122643661116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444361121 (or 444361119 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The spelling of 122643661116 in words is "one hundred twenty-two billion, six hundred forty-three million, six hundred sixty-one thousand, one hundred sixteen".