11011001022111 has 16 divisors (see below), whose sum is σ = 14871379138560. Its totient is φ = 7245801804480.

The previous prime is 11011001022107. The next prime is 11011001022137. The reversal of 11011001022111 is 11122010011011.

It is not a de Polignac number, because 11011001022111 - 2² = 11011001022107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011001022611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19302975 + ... + 19865216.

It is an arithmetic number, because the mean of its divisors is an integer number (929461196160).

Almost surely, 2^{11011001022111} is an apocalyptic number.

11011001022111 is a deficient number, since it is larger than the sum of its proper divisors (3860378116449).

11011001022111 is a wasteful number, since it uses less digits than its factorization.

11011001022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39169406.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11011001022111 its reverse (11122010011011), we get a palindrome (22133011033122).

The spelling of 11011001022111 in words is "eleven trillion, eleven billion, one million, twenty-two thousand, one hundred eleven".