122221020020 has 48 divisors (see below), whose sum is σ = 281404368000. Its totient is φ = 44220654720.

The previous prime is 122221020017. The next prime is 122221020037. The reversal of 122221020020 is 20020122221.

It is a junction number, because it is equal to n+sod(n) for n = 122221019977 and 122221020004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1352075 + ... + 1439634.

It is an arithmetic number, because the mean of its divisors is an integer number (5862591000).

Almost surely, 2^122221020020 is an apocalyptic number.

122221020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122221020020 is an abundant number, since it is smaller than the sum of its proper divisors (159183347980).

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

122221020020 is a wasteful number, since it uses less digits than its factorization.

122221020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791928 (or 2791926 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 122221020020 its reverse (20020122221), we get a palindrome (142241142241).

The spelling of 122221020020 in words is "one hundred twenty-two billion, two hundred twenty-one million, twenty thousand, twenty".