2221123011311 has 4 divisors (see below), whose sum is σ = 2351777306112. Its totient is φ = 2090468716512.

The previous prime is 2221123011287. The next prime is 2221123011361. The reversal of 2221123011311 is 1131103211222.

2221123011311 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.

It is a cyclic number.

It is not a de Polignac number, because 2221123011311 - 2¹⁰ = 2221123010287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221123011361) 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, 65327147375 + ... + 65327147408.

It is an arithmetic number, because the mean of its divisors is an integer number (587944326528).

Almost surely, 2^{2221123011311} is an apocalyptic number.

2221123011311 is a deficient number, since it is larger than the sum of its proper divisors (130654294801).

2221123011311 is a wasteful number, since it uses less digits than its factorization.

2221123011311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130654294800.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2221123011311 its reverse (1131103211222), we get a palindrome (3352226222533).

The spelling of 2221123011311 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-three million, eleven thousand, three hundred eleven".