11211001111101 has 32 divisors (see below), whose sum is σ = 16539046093440. Its totient is φ = 6698400512000.

The previous prime is 11211001111099. The next prime is 11211001111109. The reversal of 11211001111101 is 10111110011211.

It is a cyclic number.

It is not a de Polignac number, because 11211001111101 - 2¹ = 11211001111099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211001111109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6441516 + ... + 7994693.

It is an arithmetic number, because the mean of its divisors is an integer number (516845190420).

Almost surely, 2^{11211001111101} is an apocalyptic number.

11211001111101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11211001111101 is a deficient number, since it is larger than the sum of its proper divisors (5328044982339).

11211001111101 is a wasteful number, since it uses less digits than its factorization.

11211001111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436557.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 11211001111101 its reverse (10111110011211), we get a palindrome (21322111122312).

The spelling of 11211001111101 in words is "eleven trillion, two hundred eleven billion, one million, one hundred eleven thousand, one hundred one".