11221100120001 has 4 divisors (see below), whose sum is σ = 14961466826672. Its totient is φ = 7480733413332.

The previous prime is 11221100119987. The next prime is 11221100120033. The reversal of 11221100120001 is 10002100112211.

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 not a de Polignac number, because 11221100120001 - 2⁵ = 11221100119969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11221100120101) 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, 1870183353331 + ... + 1870183353336.

It is an arithmetic number, because the mean of its divisors is an integer number (3740366706668).

Almost surely, 2^{11221100120001} is an apocalyptic number.

It is an amenable number.

11221100120001 is a deficient number, since it is larger than the sum of its proper divisors (3740366706671).

11221100120001 is an equidigital number, since it uses as much as digits as its factorization.

11221100120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740366706670.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11221100120001 its reverse (10002100112211), we get a palindrome (21223200232212).

The spelling of 11221100120001 in words is "eleven trillion, two hundred twenty-one billion, one hundred million, one hundred twenty thousand, one".