11210121011121 has 16 divisors (see below), whose sum is σ = 15006454416000. Its totient is φ = 7443615852288.

The previous prime is 11210121011099. The next prime is 11210121011129. The reversal of 11210121011121 is 12111012101211.

It is not a de Polignac number, because 11210121011121 - 2⁷ = 11210121010993 is a prime.

It is a super-2 number, since 2×11210121011121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11210121011121.

It is not an unprimeable number, because it can be changed into a prime (11210121011129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1104780 + ... + 4862178.

It is an arithmetic number, because the mean of its divisors is an integer number (937903401000).

Almost surely, 2^{11210121011121} is an apocalyptic number.

It is an amenable number.

11210121011121 is a deficient number, since it is larger than the sum of its proper divisors (3796333404879).

11210121011121 is a wasteful number, since it uses less digits than its factorization.

11210121011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761368.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11210121011121 its reverse (12111012101211), we get a palindrome (23321133112332).

The spelling of 11210121011121 in words is "eleven trillion, two hundred ten billion, one hundred twenty-one million, eleven thousand, one hundred twenty-one".