11011112122021 has 8 divisors (see below), whose sum is σ = 12426333429600. Its totient is φ = 9664926000240.

The previous prime is 11011112121973. The next prime is 11011112122027. The reversal of 11011112122021 is 12022121111011.

11011112122021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11011112122021 - 2²⁵ = 11011078567589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011112121986 and 11011112122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011112122027) 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, 17258796111 + ... + 17258796748.

It is an arithmetic number, because the mean of its divisors is an integer number (1553291678700).

Almost surely, 2^{11011112122021} is an apocalyptic number.

11011112122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11011112122021 is a deficient number, since it is larger than the sum of its proper divisors (1415221307579).

11011112122021 is a wasteful number, since it uses less digits than its factorization.

11011112122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34517592899.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 11011112122021 its reverse (12022121111011), we get a palindrome (23033233233032).

The spelling of 11011112122021 in words is "eleven trillion, eleven billion, one hundred twelve million, one hundred twenty-two thousand, twenty-one".