11001111022101 has 16 divisors (see below), whose sum is σ = 14691011529600. Its totient is φ = 7322649954048.

The previous prime is 11001111022093. The next prime is 11001111022133. The reversal of 11001111022101 is 10122011110011.

It is not a de Polignac number, because 11001111022101 - 2³ = 11001111022093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001111022201) 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, 4771945 + ... + 6691313.

It is an arithmetic number, because the mean of its divisors is an integer number (918188220600).

Almost surely, 2^{11001111022101} is an apocalyptic number.

It is an amenable number.

11001111022101 is a deficient number, since it is larger than the sum of its proper divisors (3689900507499).

11001111022101 is a wasteful number, since it uses less digits than its factorization.

11001111022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922348.

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

Adding to 11001111022101 its reverse (10122011110011), we get a palindrome (21123122132112).

It can be divided in two parts, 1100111 and 1022101, that added together give a palindrome (2122212).

The spelling of 11001111022101 in words is "eleven trillion, one billion, one hundred eleven million, twenty-two thousand, one hundred one".