11220121201101 has 4 divisors (see below), whose sum is σ = 14960161601472. Its totient is φ = 7480080800732.

The previous prime is 11220121201099. The next prime is 11220121201153. The reversal of 11220121201101 is 10110212102211.

It is a happy number.

11220121201101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11220121201101 - 2¹ = 11220121201099 is a prime.

It is a super-2 number, since 2×11220121201101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220121201801) 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, 1870020200181 + ... + 1870020200186.

It is an arithmetic number, because the mean of its divisors is an integer number (3740040400368).

Almost surely, 2^{11220121201101} is an apocalyptic number.

It is an amenable number.

11220121201101 is a deficient number, since it is larger than the sum of its proper divisors (3740040400371).

11220121201101 is an equidigital number, since it uses as much as digits as its factorization.

11220121201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740040400370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11220121201101 its reverse (10110212102211), we get a palindrome (21330333303312).

The spelling of 11220121201101 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-one million, two hundred one thousand, one hundred one".