12103222311111 has 4 divisors (see below), whose sum is σ = 16137629748152. Its totient is φ = 8068814874072.

The previous prime is 12103222311101. The next prime is 12103222311113. The reversal of 12103222311111 is 11111322230121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12103222311111 - 2¹⁰ = 12103222310087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103222311113) 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, 2017203718516 + ... + 2017203718521.

It is an arithmetic number, because the mean of its divisors is an integer number (4034407437038).

Almost surely, 2^{12103222311111} is an apocalyptic number.

12103222311111 is a deficient number, since it is larger than the sum of its proper divisors (4034407437041).

12103222311111 is an equidigital number, since it uses as much as digits as its factorization.

12103222311111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4034407437040.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12103222311111 its reverse (11111322230121), we get a palindrome (23214544541232).

The spelling of 12103222311111 in words is "twelve trillion, one hundred three billion, two hundred twenty-two million, three hundred eleven thousand, one hundred eleven".