11220123211001 has 16 divisors (see below), whose sum is σ = 11841061075200. Its totient is φ = 10602238377600.

The previous prime is 11220123210949. The next prime is 11220123211081. The reversal of 11220123211001 is 10011232102211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11220123211001 - 2¹⁴ = 11220123194617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220123211081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32494181 + ... + 32837661.

It is an arithmetic number, because the mean of its divisors is an integer number (740066317200).

Almost surely, 2^{11220123211001} is an apocalyptic number.

It is an amenable number.

11220123211001 is a deficient number, since it is larger than the sum of its proper divisors (620937864199).

11220123211001 is a wasteful number, since it uses less digits than its factorization.

11220123211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347920.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11220123211001 its reverse (10011232102211), we get a palindrome (21231355313212).

The spelling of 11220123211001 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-three million, two hundred eleven thousand, one".