11000111121021 has 8 divisors (see below), whose sum is σ = 16000161630624. Its totient is φ = 6666734012720.

The previous prime is 11000111121017. The next prime is 11000111121047. The reversal of 11000111121021 is 12012111100011.

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 11000111121021 - 2² = 11000111121017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11000111120988 and 11000111121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000111121011) 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, 166668350286 + ... + 166668350351.

It is an arithmetic number, because the mean of its divisors is an integer number (2000020203828).

Almost surely, 2^{11000111121021} is an apocalyptic number.

11000111121021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11000111121021 is a deficient number, since it is larger than the sum of its proper divisors (5000050509603).

11000111121021 is a wasteful number, since it uses less digits than its factorization.

11000111121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333336700651.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11000111121021 its reverse (12012111100011), we get a palindrome (23012222221032).

The spelling of 11000111121021 in words is "eleven trillion, one hundred eleven million, one hundred twenty-one thousand, twenty-one".