11210020121011 has 4 divisors (see below), whose sum is σ = 11211073804000. Its totient is φ = 11208966438024.

The previous prime is 11210020120993. The next prime is 11210020121017. The reversal of 11210020121011 is 11012102001211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11210020121011 - 2⁷ = 11210020120883 is a prime.

It is a super-2 number, since 2×11210020121011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210020120982 and 11210020121000.

It is not an unprimeable number, because it can be changed into a prime (11210020121017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526825536 + ... + 526846813.

It is an arithmetic number, because the mean of its divisors is an integer number (2802768451000).

Almost surely, 2^{11210020121011} is an apocalyptic number.

11210020121011 is a deficient number, since it is larger than the sum of its proper divisors (1053682989).

11210020121011 is a wasteful number, since it uses less digits than its factorization.

11210020121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053682988.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11210020121011 its reverse (11012102001211), we get a palindrome (22222122122222).

The spelling of 11210020121011 in words is "eleven trillion, two hundred ten billion, twenty million, one hundred twenty-one thousand, eleven".