11222320200121 has 4 divisors (see below), whose sum is σ = 11222329252644. Its totient is φ = 11222311147600.

The previous prime is 11222320200101. The next prime is 11222320200131. The reversal of 11222320200121 is 12100202322211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2936644304896 + 8285675895225 = 1713664^2 + 2878485^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222320200121 - 2⁴¹ = 9023296944569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222320200101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2302570 + ... + 5267491.

It is an arithmetic number, because the mean of its divisors is an integer number (2805582313161).

Almost surely, 2^{11222320200121} is an apocalyptic number.

It is an amenable number.

11222320200121 is a deficient number, since it is larger than the sum of its proper divisors (9052523).

11222320200121 is an equidigital number, since it uses as much as digits as its factorization.

11222320200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9052522.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11222320200121 its reverse (12100202322211), we get a palindrome (23322522522332).

The spelling of 11222320200121 in words is "eleven trillion, two hundred twenty-two billion, three hundred twenty million, two hundred thousand, one hundred twenty-one".