11220110202121 has 16 divisors (see below), whose sum is σ = 11350534769280. Its totient is φ = 11090075651200.

The previous prime is 11220110202083. The next prime is 11220110202137. The reversal of 11220110202121 is 12120201102211.

It is a cyclic number.

It is not a de Polignac number, because 11220110202121 - 2³³ = 11211520267529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11220110202095 and 11220110202104.

It is not an unprimeable number, because it can be changed into a prime (11220110202421) 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, 220525941 + ... + 220576813.

It is an arithmetic number, because the mean of its divisors is an integer number (709408423080).

Almost surely, 2^{11220110202121} is an apocalyptic number.

It is an amenable number.

11220110202121 is a deficient number, since it is larger than the sum of its proper divisors (130424567159).

11220110202121 is a wasteful number, since it uses less digits than its factorization.

11220110202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54656.

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

Adding to 11220110202121 its reverse (12120201102211), we get a palindrome (23340311304332).

The spelling of 11220110202121 in words is "eleven trillion, two hundred twenty billion, one hundred ten million, two hundred two thousand, one hundred twenty-one".