211012012100101 has 4 divisors (see below), whose sum is σ = 211415476750912. Its totient is φ = 210608547449292.

The previous prime is 211012012100081. The next prime is 211012012100117. The reversal of 211012012100101 is 101001210210112.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211012012100101 - 2²⁷ = 211011877882373 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 (211012012100191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201732324621 + ... + 201732325666.

It is an arithmetic number, because the mean of its divisors is an integer number (52853869187728).

Almost surely, 2^{211012012100101} is an apocalyptic number.

It is an amenable number.

211012012100101 is a deficient number, since it is larger than the sum of its proper divisors (403464650811).

211012012100101 is an equidigital number, since it uses as much as digits as its factorization.

211012012100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403464650810.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211012012100101 its reverse (101001210210112), we get a palindrome (312013222310213).

The spelling of 211012012100101 in words is "two hundred eleven trillion, twelve billion, twelve million, one hundred thousand, one hundred one".