201101210200020 has 192 divisors, whose sum is σ = 616426028709120. Its totient is φ = 48683411251200.

The previous prime is 201101210200013. The next prime is 201101210200103. The reversal of 201101210200020 is 20002012101102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 201101210199969 and 201101210200005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 338520411 + ... + 339113949.

It is an arithmetic number, because the mean of its divisors is an integer number (3210552232860).

Almost surely, 2^{201101210200020} is an apocalyptic number.

201101210200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201101210200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308213014354560).

201101210200020 is an abundant number, since it is smaller than the sum of its proper divisors (415324818509100).

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

201101210200020 is a wasteful number, since it uses less digits than its factorization.

201101210200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600746 (or 600744 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201101210200020 its reverse (20002012101102), we get a palindrome (221103222301122).

The spelling of 201101210200020 in words is "two hundred one trillion, one hundred one billion, two hundred ten million, two hundred thousand, twenty".