11120122212221 has 16 divisors (see below), whose sum is σ = 13157916887808. Its totient is φ = 9282481036800.

The previous prime is 11120122212211. The next prime is 11120122212229. The reversal of 11120122212221 is 12221222102111.

It is a cyclic number.

It is not a de Polignac number, because 11120122212221 - 2¹⁴ = 11120122195837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11120122212193 and 11120122212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120122212229) 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, 725186165 + ... + 725201498.

It is an arithmetic number, because the mean of its divisors is an integer number (822369805488).

Almost surely, 2^{11120122212221} is an apocalyptic number.

11120122212221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11120122212221 is a deficient number, since it is larger than the sum of its proper divisors (2037794675587).

11120122212221 is a wasteful number, since it uses less digits than its factorization.

11120122212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450387732.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11120122212221 its reverse (12221222102111), we get a palindrome (23341344314332).

It can be divided in two parts, 1112012 and 2212221, that added together give a palindrome (3324233).

The spelling of 11120122212221 in words is "eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twenty-one".