201211010201020 has 24 divisors (see below), whose sum is σ = 436173544695168. Its totient is φ = 77888132980800.

The previous prime is 201211010200999. The next prime is 201211010201093. The reversal of 201211010201020 is 20102010112102.

It is a super-2 number, since 2×201211010201020² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162266943091 + ... + 162266944330.

It is an arithmetic number, because the mean of its divisors is an integer number (18173897695632).

Almost surely, 2^{201211010201020} is an apocalyptic number.

201211010201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201211010201020 is an abundant number, since it is smaller than the sum of its proper divisors (234962534494148).

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

201211010201020 is a wasteful number, since it uses less digits than its factorization.

201211010201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324533887461 (or 324533887459 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201211010201020 its reverse (20102010112102), we get a palindrome (221313020313122).

The spelling of 201211010201020 in words is "two hundred one trillion, two hundred eleven billion, ten million, two hundred one thousand, twenty".