11100220002121 has 16 divisors (see below), whose sum is σ = 11334185392320. Its totient is φ = 10868654917120.

The previous prime is 11100220002023. The next prime is 11100220002169. The reversal of 11100220002121 is 12120002200111.

It is a cyclic number.

It is not a de Polignac number, because 11100220002121 - 2¹⁵ = 11100219969353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11100220002181) 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, 165121206 + ... + 165188416.

It is an arithmetic number, because the mean of its divisors is an integer number (708386587020).

Almost surely, 2^{11100220002121} is an apocalyptic number.

It is an amenable number.

11100220002121 is a deficient number, since it is larger than the sum of its proper divisors (233965390199).

11100220002121 is a wasteful number, since it uses less digits than its factorization.

11100220002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85016.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11100220002121 its reverse (12120002200111), we get a palindrome (23220222202232).

The spelling of 11100220002121 in words is "eleven trillion, one hundred billion, two hundred twenty million, two thousand, one hundred twenty-one".