11221101120121 has 4 divisors (see below), whose sum is σ = 11459847952512. Its totient is φ = 10982354287732.

The previous prime is 11221101120083. The next prime is 11221101120137. The reversal of 11221101120121 is 12102110112211.

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 11221101120121 - 2¹⁵ = 11221101087353 is a prime.

It is a super-2 number, since 2×11221101120121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11221101120095 and 11221101120104.

It is not an unprimeable number, because it can be changed into a prime (11221101120721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119373416125 + ... + 119373416218.

It is an arithmetic number, because the mean of its divisors is an integer number (2864961988128).

Almost surely, 2^{11221101120121} is an apocalyptic number.

It is an amenable number.

11221101120121 is a deficient number, since it is larger than the sum of its proper divisors (238746832391).

11221101120121 is an equidigital number, since it uses as much as digits as its factorization.

11221101120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238746832390.

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

Adding to 11221101120121 its reverse (12102110112211), we get a palindrome (23323211232332).

The spelling of 11221101120121 in words is "eleven trillion, two hundred twenty-one billion, one hundred one million, one hundred twenty thousand, one hundred twenty-one".