201102212110001 has 4 divisors (see below), whose sum is σ = 201102240479604. Its totient is φ = 201102183740400.

The previous prime is 201102212109989. The next prime is 201102212110049. The reversal of 201102212110001 is 100011212201102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 27348925344400 + 173753286765601 = 5229620^2 + 13181551^2 .

It is a cyclic number.

It is not a de Polignac number, because 201102212110001 - 2⁶ = 201102212109937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201102212110201) 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, 6603191 + ... + 21114131.

It is an arithmetic number, because the mean of its divisors is an integer number (50275560119901).

Almost surely, 2^{201102212110001} is an apocalyptic number.

It is an amenable number.

201102212110001 is a deficient number, since it is larger than the sum of its proper divisors (28369603).

201102212110001 is a wasteful number, since it uses less digits than its factorization.

201102212110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28369602.

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

Adding to 201102212110001 its reverse (100011212201102), we get a palindrome (301113424311103).

The spelling of 201102212110001 in words is "two hundred one trillion, one hundred two billion, two hundred twelve million, one hundred ten thousand, one".