11020101201221 has 16 divisors (see below), whose sum is σ = 12625948747776. Its totient is φ = 9422169813936.

The previous prime is 11020101201217. The next prime is 11020101201283. The reversal of 11020101201221 is 12210210102011.

It is a cyclic number.

It is not a de Polignac number, because 11020101201221 - 2² = 11020101201217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11020101201196 and 11020101201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020101204221) 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, 3293270 + ... + 5734616.

It is an arithmetic number, because the mean of its divisors is an integer number (789121796736).

Almost surely, 2^{11020101201221} is an apocalyptic number.

It is an amenable number.

11020101201221 is a deficient number, since it is larger than the sum of its proper divisors (1605847546555).

11020101201221 is an equidigital number, since it uses as much as digits as its factorization.

11020101201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442968.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11020101201221 its reverse (12210210102011), we get a palindrome (23230311303232).

The spelling of 11020101201221 in words is "eleven trillion, twenty billion, one hundred one million, two hundred one thousand, two hundred twenty-one".