11211020022111 has 64 divisors (see below), whose sum is σ = 18461412480000. Its totient is φ = 5893005229056.

The previous prime is 11211020022089. The next prime is 11211020022113. The reversal of 11211020022111 is 11122002011211.

It is a happy number.

It is not a de Polignac number, because 11211020022111 - 2¹⁷ = 11211019891039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211020022113) 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 63 ways as a sum of consecutive naturals, for example, 161840995 + ... + 161910251.

It is an arithmetic number, because the mean of its divisors is an integer number (288459570000).

Almost surely, 2^{11211020022111} is an apocalyptic number.

11211020022111 is a deficient number, since it is larger than the sum of its proper divisors (7250392457889).

11211020022111 is a wasteful number, since it uses less digits than its factorization.

11211020022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71328.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11211020022111 its reverse (11122002011211), we get a palindrome (22333022033322).

The spelling of 11211020022111 in words is "eleven trillion, two hundred eleven billion, twenty million, twenty-two thousand, one hundred eleven".