201122001120020 has 12 divisors (see below), whose sum is σ = 422356202352084. Its totient is φ = 80448800448000.

The previous prime is 201122001119993. The next prime is 201122001120031. The reversal of 201122001120020 is 20021100221102.

It can be written as a sum of positive squares in 2 ways, for example, as 29999917019524 + 171122084100496 = 5477218^2 + 13081364^2 .

It is a super-2 number, since 2×201122001120020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201122001119977 and 201122001120004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5028050027981 + ... + 5028050028020.

It is an arithmetic number, because the mean of its divisors is an integer number (35196350196007).

Almost surely, 2^{201122001120020} is an apocalyptic number.

201122001120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201122001120020 is an abundant number, since it is smaller than the sum of its proper divisors (221234201232064).

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

201122001120020 is a wasteful number, since it uses less digits than its factorization.

201122001120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056100056010 (or 10056100056008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201122001120020 its reverse (20021100221102), we get a palindrome (221143101341122).

The spelling of 201122001120020 in words is "two hundred one trillion, one hundred twenty-two billion, one million, one hundred twenty thousand, twenty".