11111000121101 has 32 divisors (see below), whose sum is σ = 11795947488000. Its totient is φ = 10443684658176.

The previous prime is 11111000121047. The next prime is 11111000121113. The reversal of 11111000121101 is 10112100011111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11111000121101 - 2²⁶ = 11110933012237 is a prime.

It is a super-2 number, since 2×11111000121101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111000126101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1139701775 + ... + 1139711523.

It is an arithmetic number, because the mean of its divisors is an integer number (368623359000).

Almost surely, 2^{11111000121101} is an apocalyptic number.

It is an amenable number.

11111000121101 is a deficient number, since it is larger than the sum of its proper divisors (684947366899).

11111000121101 is an equidigital number, since it uses as much as digits as its factorization.

11111000121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11573.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11111000121101 its reverse (10112100011111), we get a palindrome (21223100132212).

The spelling of 11111000121101 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-one thousand, one hundred one".