211102202011 has 4 divisors (see below), whose sum is σ = 215593738272. Its totient is φ = 206610665752.

The previous prime is 211102201991. The next prime is 211102202063. The reversal of 211102202011 is 110202201112.

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

It is a cyclic number.

It is not a de Polignac number, because 211102202011 - 2¹¹ = 211102199963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211102201982 and 211102202000.

It is not an unprimeable number, because it can be changed into a prime (211102202611) 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, 2245768060 + ... + 2245768153.

It is an arithmetic number, because the mean of its divisors is an integer number (53898434568).

Almost surely, 2^211102202011 is an apocalyptic number.

211102202011 is a deficient number, since it is larger than the sum of its proper divisors (4491536261).

211102202011 is an equidigital number, since it uses as much as digits as its factorization.

211102202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491536260.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211102202011 its reverse (110202201112), we get a palindrome (321304403123).

The spelling of 211102202011 in words is "two hundred eleven billion, one hundred two million, two hundred two thousand, eleven".