11221111001101 has 16 divisors (see below), whose sum is σ = 11429740224000. Its totient is φ = 11014243875648.

The previous prime is 11221111001071. The next prime is 11221111001123. The reversal of 11221111001101 is 10110011112211.

It is a cyclic number.

It is not a de Polignac number, because 11221111001101 - 2⁵ = 11221111001069 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 (11221111008101) 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, 158278180 + ... + 158349058.

It is an arithmetic number, because the mean of its divisors is an integer number (714358764000).

Almost surely, 2^{11221111001101} is an apocalyptic number.

It is an amenable number.

11221111001101 is a deficient number, since it is larger than the sum of its proper divisors (208629222899).

11221111001101 is a wasteful number, since it uses less digits than its factorization.

11221111001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83268.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11221111001101 its reverse (10110011112211), we get a palindrome (21331122113312).

It can be divided in two parts, 1122111 and 1001101, that added together give a palindrome (2123212).

The spelling of 11221111001101 in words is "eleven trillion, two hundred twenty-one billion, one hundred eleven million, one thousand, one hundred one".