201211020012101 has 32 divisors (see below), whose sum is σ = 234591711418368. Its totient is φ = 170546750007040.

The previous prime is 201211020012097. The next prime is 201211020012113. The reversal of 201211020012101 is 101210020112102.

It is not a de Polignac number, because 201211020012101 - 2² = 201211020012097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211020012151) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1702766846 + ... + 1702885008.

It is an arithmetic number, because the mean of its divisors is an integer number (7330990981824).

Almost surely, 2^{201211020012101} is an apocalyptic number.

It is an amenable number.

201211020012101 is a deficient number, since it is larger than the sum of its proper divisors (33380691406267).

201211020012101 is a wasteful number, since it uses less digits than its factorization.

201211020012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203401.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201211020012101 its reverse (101210020112102), we get a palindrome (302421040124203).

The spelling of 201211020012101 in words is "two hundred one trillion, two hundred eleven billion, twenty million, twelve thousand, one hundred one".