11010220121 has 8 divisors (see below), whose sum is σ = 11368218624. Its totient is φ = 10652398560.

The previous prime is 11010220057. The next prime is 11010220139. The reversal of 11010220121 is 12102201011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11010220121 - 2⁶ = 11010220057 is a prime.

It is a super-2 number, since 2×11010220121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11010220421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88616 + ... + 172838.

It is an arithmetic number, because the mean of its divisors is an integer number (1421027328).

Almost surely, 2^11010220121 is an apocalyptic number.

It is an amenable number.

11010220121 is a deficient number, since it is larger than the sum of its proper divisors (357998503).

11010220121 is an equidigital number, since it uses as much as digits as its factorization.

11010220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88471.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11010220121 its reverse (12102201011), we get a palindrome (23112421132).

The spelling of 11010220121 in words is "eleven billion, ten million, two hundred twenty thousand, one hundred twenty-one".