211101020212101 has 32 divisors (see below), whose sum is σ = 287726759470080. Its totient is φ = 137638310257536.

The previous prime is 211101020212063. The next prime is 211101020212123. The reversal of 211101020212101 is 101212020101112.

It is a happy number.

It is not a de Polignac number, because 211101020212101 - 2¹⁴ = 211101020195717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211101020212141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9936265 + ... + 22823921.

It is an arithmetic number, because the mean of its divisors is an integer number (8991461233440).

Almost surely, 2^{211101020212101} is an apocalyptic number.

It is an amenable number.

211101020212101 is a deficient number, since it is larger than the sum of its proper divisors (76625739257979).

211101020212101 is a wasteful number, since it uses less digits than its factorization.

211101020212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12888313.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211101020212101 its reverse (101212020101112), we get a palindrome (312313040313213).

The spelling of 211101020212101 in words is "two hundred eleven trillion, one hundred one billion, twenty million, two hundred twelve thousand, one hundred one".