122201202020020 has 36 divisors (see below), whose sum is σ = 270839838620484. Its totient is φ = 46307823920640.

The previous prime is 122201202019957. The next prime is 122201202020021. The reversal of 122201202020020 is 20020202102221.

It can be written as a sum of positive squares in 2 ways, for example, as 54471396464676 + 67729805555344 = 7380474^2 + 8229812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 122201202019976 and 122201202020003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122201202020021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8462679901 + ... + 8462694340.

It is an arithmetic number, because the mean of its divisors is an integer number (7523328850569).

Almost surely, 2^{122201202020020} is an apocalyptic number.

122201202020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122201202020020 is an abundant number, since it is smaller than the sum of its proper divisors (148638636600464).

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

122201202020020 is a wasteful number, since it uses less digits than its factorization.

122201202020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16925374288 (or 16925374267 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 122201202020020 its reverse (20020202102221), we get a palindrome (142221404122241).

The spelling of 122201202020020 in words is "one hundred twenty-two trillion, two hundred one billion, two hundred two million, twenty thousand, twenty".