11101122222021 has 48 divisors (see below), whose sum is σ = 17404929360000. Its totient is φ = 6777649904256.

The previous prime is 11101122222011. The next prime is 11101122222031. The reversal of 11101122222021 is 12022222110111.

11101122222021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11101122222011) and next prime (11101122222031).

It is not a de Polignac number, because 11101122222021 - 2³¹ = 11098974738373 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11101122221985 and 11101122222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101122222011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7442686 + ... + 8808848.

It is an arithmetic number, because the mean of its divisors is an integer number (362602695000).

Almost surely, 2^{11101122222021} is an apocalyptic number.

It is an amenable number.

11101122222021 is a deficient number, since it is larger than the sum of its proper divisors (6303807137979).

11101122222021 is a wasteful number, since it uses less digits than its factorization.

11101122222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366730 (or 1366727 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11101122222021 its reverse (12022222110111), we get a palindrome (23123344332132).

The spelling of 11101122222021 in words is "eleven trillion, one hundred one billion, one hundred twenty-two million, two hundred twenty-two thousand, twenty-one".