201000122010020 has 12 divisors (see below), whose sum is σ = 422100256221084. Its totient is φ = 80400048804000.

The previous prime is 201000122010011. The next prime is 201000122010049. The reversal of 201000122010020 is 20010221000102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 134464386590884 + 66535735419136 = 11595878^2 + 8156944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201000122009983 and 201000122010010.

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, 5025003050231 + ... + 5025003050270.

It is an arithmetic number, because the mean of its divisors is an integer number (35175021351757).

Almost surely, 2^{201000122010020} is an apocalyptic number.

201000122010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201000122010020 is an abundant number, since it is smaller than the sum of its proper divisors (221100134211064).

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

201000122010020 is a wasteful number, since it uses less digits than its factorization.

201000122010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050006100510 (or 10050006100508 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201000122010020 its reverse (20010221000102), we get a palindrome (221010343010122).

The spelling of 201000122010020 in words is "two hundred one trillion, one hundred twenty-two million, ten thousand, twenty".