11021221102111 has 32 divisors (see below), whose sum is σ = 12238717571136. Its totient is φ = 9841428480000.

The previous prime is 11021221102079. The next prime is 11021221102123. The reversal of 11021221102111 is 11120112212011.

It is a cyclic number.

It is not a de Polignac number, because 11021221102111 - 2⁵ = 11021221102079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021221102711) 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, 111758421 + ... + 111856993.

It is an arithmetic number, because the mean of its divisors is an integer number (382459924098).

Almost surely, 2^{11021221102111} is an apocalyptic number.

11021221102111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11021221102111 is a deficient number, since it is larger than the sum of its proper divisors (1217496469025).

11021221102111 is a wasteful number, since it uses less digits than its factorization.

11021221102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99483.

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

Adding to 11021221102111 its reverse (11120112212011), we get a palindrome (22141333314122).

The spelling of 11021221102111 in words is "eleven trillion, twenty-one billion, two hundred twenty-one million, one hundred two thousand, one hundred eleven".