11121102111001 has 8 divisors (see below), whose sum is σ = 11192022453384. Its totient is φ = 11050182848640.

The previous prime is 11121102110983. The next prime is 11121102111011. The reversal of 11121102111001 is 10011120112111.

It can be written as a sum of positive squares in 4 ways, for example, as 248756550025 + 10872345560976 = 498755^2 + 3297324^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11121102111001 - 2²³ = 11121093722393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121102111011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35155131 + ... + 35470063.

It is an arithmetic number, because the mean of its divisors is an integer number (1399002806673).

Almost surely, 2^{11121102111001} is an apocalyptic number.

It is an amenable number.

11121102111001 is a deficient number, since it is larger than the sum of its proper divisors (70920342383).

11121102111001 is a wasteful number, since it uses less digits than its factorization.

11121102111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540011.

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

Adding to 11121102111001 its reverse (10011120112111), we get a palindrome (21132222223112).

The spelling of 11121102111001 in words is "eleven trillion, one hundred twenty-one billion, one hundred two million, one hundred eleven thousand, one".