11001222210111 has 48 divisors (see below), whose sum is σ = 18170684089344. Its totient is φ = 5794587937728.

The previous prime is 11001222210047. The next prime is 11001222210137. The reversal of 11001222210111 is 11101222210011.

It is a happy number.

It is not a de Polignac number, because 11001222210111 - 2⁶ = 11001222210047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001222215111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19329735 + ... + 19890728.

It is an arithmetic number, because the mean of its divisors is an integer number (378555918528).

Almost surely, 2^{11001222210111} is an apocalyptic number.

11001222210111 is a deficient number, since it is larger than the sum of its proper divisors (7169461879233).

11001222210111 is a wasteful number, since it uses less digits than its factorization.

11001222210111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39220548 (or 39220529 counting only the distinct ones).

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

Adding to 11001222210111 its reverse (11101222210011), we get a palindrome (22102444420122).

The spelling of 11001222210111 in words is "eleven trillion, one billion, two hundred twenty-two million, two hundred ten thousand, one hundred eleven".