211201212101 has 16 divisors (see below), whose sum is σ = 231338263680. Its totient is φ = 191221662720.

The previous prime is 211201212049. The next prime is 211201212107. The reversal of 211201212101 is 101212102112.

211201212101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211201212101 - 2¹⁴ = 211201195717 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 (211201212107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3162665 + ... + 3228753.

It is an arithmetic number, because the mean of its divisors is an integer number (14458641480).

Almost surely, 2^211201212101 is an apocalyptic number.

It is an amenable number.

211201212101 is a deficient number, since it is larger than the sum of its proper divisors (20137051579).

211201212101 is a wasteful number, since it uses less digits than its factorization.

211201212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67276.

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

Adding to 211201212101 its reverse (101212102112), we get a palindrome (312413314213).

The spelling of 211201212101 in words is "two hundred eleven billion, two hundred one million, two hundred twelve thousand, one hundred one".