11011101122021 has 36 divisors (see below), whose sum is σ = 15130820399904. Its totient is φ = 7920072669600.

The previous prime is 11011101122011. The next prime is 11011101122029. The reversal of 11011101122021 is 12022110111011.

11011101122021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11011101122021 - 2⁶ = 11011101121957 is a prime.

It is a super-2 number, since 2×11011101122021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11011101121987 and 11011101122005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011101122029) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 60349025 + ... + 60531206.

It is an arithmetic number, because the mean of its divisors is an integer number (420300566664).

Almost surely, 2^{11011101122021} is an apocalyptic number.

11011101122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11011101122021 is a deficient number, since it is larger than the sum of its proper divisors (4119719277883).

11011101122021 is a wasteful number, since it uses less digits than its factorization.

11011101122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120880282 (or 120880262 counting only the distinct ones).

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

Adding to 11011101122021 its reverse (12022110111011), we get a palindrome (23033211233032).

The spelling of 11011101122021 in words is "eleven trillion, eleven billion, one hundred one million, one hundred twenty-two thousand, twenty-one".