11211122002111 has 16 divisors (see below), whose sum is σ = 11270628914688. Its totient is φ = 11151789588000.

The previous prime is 11211122002099. The next prime is 11211122002121. The reversal of 11211122002111 is 11120022111211.

It is a cyclic number.

It is not a de Polignac number, because 11211122002111 - 2³⁵ = 11176762263743 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 (11211122002121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303797761 + ... + 303834661.

It is an arithmetic number, because the mean of its divisors is an integer number (704414307168).

Almost surely, 2^{11211122002111} is an apocalyptic number.

11211122002111 is a deficient number, since it is larger than the sum of its proper divisors (59506912577).

11211122002111 is a wasteful number, since it uses less digits than its factorization.

11211122002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39222.

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

Adding to 11211122002111 its reverse (11120022111211), we get a palindrome (22331144113322).

The spelling of 11211122002111 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-two million, two thousand, one hundred eleven".