11011112220001 has 4 divisors (see below), whose sum is σ = 11011151187504. Its totient is φ = 11011073252500.

The previous prime is 11011112219999. The next prime is 11011112220013. The reversal of 11011112220001 is 10002221111011.

It is a happy number.

11011112220001 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 11011112220001 - 2¹ = 11011112219999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011112220701) 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, 19056775 + ... + 19626076.

It is an arithmetic number, because the mean of its divisors is an integer number (2752787796876).

Almost surely, 2^{11011112220001} is an apocalyptic number.

It is an amenable number.

11011112220001 is a deficient number, since it is larger than the sum of its proper divisors (38967503).

11011112220001 is an equidigital number, since it uses as much as digits as its factorization.

11011112220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38967502.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11011112220001 its reverse (10002221111011), we get a palindrome (21013333331012).

The spelling of 11011112220001 in words is "eleven trillion, eleven billion, one hundred twelve million, two hundred twenty thousand, one".