211102020201121 has 4 divisors (see below), whose sum is σ = 241259451658432. Its totient is φ = 180944588743812.

The previous prime is 211102020201091. The next prime is 211102020201181. The reversal of 211102020201121 is 121102020201112.

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 211102020201121 - 2¹³ = 211102020192929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211102020201095 and 211102020201104.

It is not an unprimeable number, because it can be changed into a prime (211102020201181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15078715728645 + ... + 15078715728658.

It is an arithmetic number, because the mean of its divisors is an integer number (60314862914608).

Almost surely, 2^{211102020201121} is an apocalyptic number.

It is an amenable number.

211102020201121 is a deficient number, since it is larger than the sum of its proper divisors (30157431457311).

211102020201121 is an equidigital number, since it uses as much as digits as its factorization.

211102020201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30157431457310.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211102020201121 its reverse (121102020201112), we get a palindrome (332204040402233).

Subtracting from 211102020201121 its reverse (121102020201112), we obtain a palindrome (90000000000009).

The spelling of 211102020201121 in words is "two hundred eleven trillion, one hundred two billion, twenty million, two hundred one thousand, one hundred twenty-one".