11120121002221 has 16 divisors (see below), whose sum is σ = 13864141398528. Its totient is φ = 8664970330800.

The previous prime is 11120121002213. The next prime is 11120121002239. The reversal of 11120121002221 is 12220012102111.

It is not a de Polignac number, because 11120121002221 - 2³ = 11120121002213 is a prime.

It is a super-2 number, since 2×11120121002221² (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 = 11120121002195 and 11120121002204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120121002261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13427386 + ... + 14231476.

It is an arithmetic number, because the mean of its divisors is an integer number (866508837408).

Almost surely, 2^{11120121002221} is an apocalyptic number.

11120121002221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11120121002221 is a deficient number, since it is larger than the sum of its proper divisors (2744020396307).

11120121002221 is a wasteful number, since it uses less digits than its factorization.

11120121002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983712.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11120121002221 its reverse (12220012102111), we get a palindrome (23340133104332).

The spelling of 11120121002221 in words is "eleven trillion, one hundred twenty billion, one hundred twenty-one million, two thousand, two hundred twenty-one".