122001110020 has 24 divisors (see below), whose sum is σ = 256341121344. Its totient is φ = 48774007776.

The previous prime is 122001109991. The next prime is 122001110027. The reversal of 122001110020 is 20011100221.

It is a super-2 number, since 2×122001110020² (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 = 122001109979 and 122001110006.

It is not an unprimeable number, because it can be changed into a prime (122001110027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614402 + ... + 1688281.

It is an arithmetic number, because the mean of its divisors is an integer number (10680880056).

Almost surely, 2^122001110020 is an apocalyptic number.

122001110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122001110020 is an abundant number, since it is smaller than the sum of its proper divisors (134340011324).

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

122001110020 is a wasteful number, since it uses less digits than its factorization.

122001110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3304539 (or 3304537 counting only the distinct ones).

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

Adding to 122001110020 its reverse (20011100221), we get a palindrome (142012210241).

The spelling of 122001110020 in words is "one hundred twenty-two billion, one million, one hundred ten thousand, twenty".