11211002200111 has 4 divisors (see below), whose sum is σ = 12812573942992. Its totient is φ = 9609430457232.

The previous prime is 11211002200043. The next prime is 11211002200129. The reversal of 11211002200111 is 11100220011211.

It is a happy number.

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 11211002200111 - 2²⁷ = 11210867982383 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11211002200091 and 11211002200100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211002203111) 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, 800785871430 + ... + 800785871443.

It is an arithmetic number, because the mean of its divisors is an integer number (3203143485748).

Almost surely, 2^{11211002200111} is an apocalyptic number.

11211002200111 is a deficient number, since it is larger than the sum of its proper divisors (1601571742881).

11211002200111 is an equidigital number, since it uses as much as digits as its factorization.

11211002200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601571742880.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11211002200111 its reverse (11100220011211), we get a palindrome (22311222211322).

The spelling of 11211002200111 in words is "eleven trillion, two hundred eleven billion, two million, two hundred thousand, one hundred eleven".