122100110020 has 72 divisors (see below), whose sum is σ = 313971759360. Its totient is φ = 39659578560.

The previous prime is 122100109981. The next prime is 122100110063. The reversal of 122100110020 is 20011001221.

It is a super-2 number, since 2×122100110020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 122100109979 and 122100110006.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3260116 + ... + 3297355.

It is an arithmetic number, because the mean of its divisors is an integer number (4360718880).

Almost surely, 2^122100110020 is an apocalyptic number.

122100110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122100110020 is an abundant number, since it is smaller than the sum of its proper divisors (191871649340).

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

122100110020 is a wasteful number, since it uses less digits than its factorization.

122100110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6557513 (or 6557504 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122100110020 its reverse (20011001221), we get a palindrome (142111111241).

The spelling of 122100110020 in words is "one hundred twenty-two billion, one hundred million, one hundred ten thousand, twenty".