12221120102111 has 2 divisors, whose sum is σ = 12221120102112. Its totient is φ = 12221120102110.

The previous prime is 12221120102053. The next prime is 12221120102119. The reversal of 12221120102111 is 11120102112221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12221120102111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12221120102111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221120102119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110560051055 + 6110560051056.

It is an arithmetic number, because the mean of its divisors is an integer number (6110560051056).

Almost surely, 2^{12221120102111} is an apocalyptic number.

12221120102111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221120102111 is an equidigital number, since it uses as much as digits as its factorization.

12221120102111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12221120102111 its reverse (11120102112221), we get a palindrome (23341222214332).

The spelling of 12221120102111 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty million, one hundred two thousand, one hundred eleven".