11100101120001 has 12 divisors (see below), whose sum is σ = 16466816677012. Its totient is φ = 7200065591136.

The previous prime is 11100101119969. The next prime is 11100101120011. The reversal of 11100101120001 is 10002110100111.

It can be written as a sum of positive squares in 2 ways, for example, as 4127459508225 + 6972641611776 = 2031615^2 + 2640576^2 .

It is not a de Polignac number, because 11100101120001 - 2⁵ = 11100101119969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100101120011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16666818166 + ... + 16666818831.

Almost surely, 2^{11100101120001} is an apocalyptic number.

It is an amenable number.

11100101120001 is a deficient number, since it is larger than the sum of its proper divisors (5366715557011).

11100101120001 is a wasteful number, since it uses less digits than its factorization.

11100101120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333637040 (or 33333637037 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 11100101120001 its reverse (10002110100111), we get a palindrome (21102211220112).

It can be divided in two parts, 11100 and 101120001, that added together give a palindrome (101131101).

The spelling of 11100101120001 in words is "eleven trillion, one hundred billion, one hundred one million, one hundred twenty thousand, one".