12221100111311 has 16 divisors (see below), whose sum is σ = 15408216280128. Its totient is φ = 9433601798400.

The previous prime is 12221100111247. The next prime is 12221100111317. The reversal of 12221100111311 is 11311100112221.

It is not a de Polignac number, because 12221100111311 - 2⁶ = 12221100111247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12221100111311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221100111317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1637774360 + ... + 1637781821.

It is an arithmetic number, because the mean of its divisors is an integer number (963013517508).

Almost surely, 2^{12221100111311} is an apocalyptic number.

12221100111311 is a deficient number, since it is larger than the sum of its proper divisors (3187116168817).

12221100111311 is a wasteful number, since it uses less digits than its factorization.

12221100111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275556242.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 12221100111311 its reverse (11311100112221), we get a palindrome (23532200223532).

The spelling of 12221100111311 in words is "twelve trillion, two hundred twenty-one billion, one hundred million, one hundred eleven thousand, three hundred eleven".