11021110121021 has 32 divisors (see below), whose sum is σ = 14963839430400. Its totient is φ = 7838201479680.

The previous prime is 11021110121017. The next prime is 11021110121101. The reversal of 11021110121021 is 12012101112011.

It is not a de Polignac number, because 11021110121021 - 2² = 11021110121017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11021110120987 and 11021110121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021110121011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61765406 + ... + 61943583.

It is an arithmetic number, because the mean of its divisors is an integer number (467619982200).

Almost surely, 2^{11021110121021} is an apocalyptic number.

11021110121021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11021110121021 is a deficient number, since it is larger than the sum of its proper divisors (3942729309379).

11021110121021 is a wasteful number, since it uses less digits than its factorization.

11021110121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123709109.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11021110121021 its reverse (12012101112011), we get a palindrome (23033211233032).

The spelling of 11021110121021 in words is "eleven trillion, twenty-one billion, one hundred ten million, one hundred twenty-one thousand, twenty-one".