11122221130221 has 4 divisors (see below), whose sum is σ = 14829628173632. Its totient is φ = 7414814086812.

The previous prime is 11122221130213. The next prime is 11122221130261. The reversal of 11122221130221 is 12203112222111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 11122221130221 - 2³ = 11122221130213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122221130201) 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 3 ways as a sum of consecutive naturals, for example, 1853703521701 + ... + 1853703521706.

It is an arithmetic number, because the mean of its divisors is an integer number (3707407043408).

Almost surely, 2^{11122221130221} is an apocalyptic number.

It is an amenable number.

11122221130221 is a deficient number, since it is larger than the sum of its proper divisors (3707407043411).

11122221130221 is an equidigital number, since it uses as much as digits as its factorization.

11122221130221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707407043410.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11122221130221 its reverse (12203112222111), we get a palindrome (23325333352332).

The spelling of 11122221130221 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred thirty thousand, two hundred twenty-one".