11210121011 has 32 divisors (see below), whose sum is σ = 12820239360. Its totient is φ = 9736644096.

The previous prime is 11210120983. The next prime is 11210121019. The reversal of 11210121011 is 11012101211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11210121011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11210120983 and 11210121001.

It is not an unprimeable number, because it can be changed into a prime (11210121019) 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 31 ways as a sum of consecutive naturals, for example, 3444461 + ... + 3447713.

It is an arithmetic number, because the mean of its divisors is an integer number (400632480).

Almost surely, 2^11210121011 is an apocalyptic number.

11210121011 is a deficient number, since it is larger than the sum of its proper divisors (1610118349).

11210121011 is a wasteful number, since it uses less digits than its factorization.

11210121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11210121011 its reverse (11012101211), we get a palindrome (22222222222).

The spelling of 11210121011 in words is "eleven billion, two hundred ten million, one hundred twenty-one thousand, eleven".