211002422100101 has 4 divisors (see below), whose sum is σ = 211923830057100. Its totient is φ = 210081014143104.

The previous prime is 211002422100091. The next prime is 211002422100109. The reversal of 211002422100101 is 101001224200112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155404297447876 + 55598124652225 = 12466126^2 + 7456415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211002422100101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211002422100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211002422100109) 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, 460703978156 + ... + 460703978613.

It is an arithmetic number, because the mean of its divisors is an integer number (52980957514275).

Almost surely, 2^{211002422100101} is an apocalyptic number.

It is an amenable number.

211002422100101 is a deficient number, since it is larger than the sum of its proper divisors (921407956999).

211002422100101 is an equidigital number, since it uses as much as digits as its factorization.

211002422100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921407956998.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211002422100101 its reverse (101001224200112), we get a palindrome (312003646300213).

The spelling of 211002422100101 in words is "two hundred eleven trillion, two billion, four hundred twenty-two million, one hundred thousand, one hundred one".