11210020121021 has 16 divisors (see below), whose sum is σ = 11599889387520. Its totient is φ = 10821937167360.

The previous prime is 11210020121017. The next prime is 11210020121039. The reversal of 11210020121021 is 12012102001211.

It is a cyclic number.

It is not a de Polignac number, because 11210020121021 - 2² = 11210020121017 is a prime.

It is a super-2 number, since 2×11210020121021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11210020120987 and 11210020121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210020121221) 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 15 ways as a sum of consecutive naturals, for example, 33172916 + ... + 33509138.

It is an arithmetic number, because the mean of its divisors is an integer number (724993086720).

Almost surely, 2^{11210020121021} is an apocalyptic number.

It is an amenable number.

11210020121021 is a deficient number, since it is larger than the sum of its proper divisors (389869266499).

11210020121021 is a wasteful number, since it uses less digits than its factorization.

11210020121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338876.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11210020121021 its reverse (12012102001211), we get a palindrome (23222122122232).

The spelling of 11210020121021 in words is "eleven trillion, two hundred ten billion, twenty million, one hundred twenty-one thousand, twenty-one".