11222022121121 has 4 divisors (see below), whose sum is σ = 12825168138432. Its totient is φ = 9618876103812.

The previous prime is 11222022121109. The next prime is 11222022121139. The reversal of 11222022121121 is 12112122022211.

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 a cyclic number.

It is not a de Polignac number, because 11222022121121 - 2¹⁴ = 11222022104737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222022121093 and 11222022121102.

It is not an unprimeable number, because it can be changed into a prime (11222022121181) 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, 801573008645 + ... + 801573008658.

It is an arithmetic number, because the mean of its divisors is an integer number (3206292034608).

Almost surely, 2^{11222022121121} is an apocalyptic number.

It is an amenable number.

11222022121121 is a deficient number, since it is larger than the sum of its proper divisors (1603146017311).

11222022121121 is an equidigital number, since it uses as much as digits as its factorization.

11222022121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603146017310.

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

Adding to 11222022121121 its reverse (12112122022211), we get a palindrome (23334144143332).

The spelling of 11222022121121 in words is "eleven trillion, two hundred twenty-two billion, twenty-two million, one hundred twenty-one thousand, one hundred twenty-one".