12202120111 has 2 divisors, whose sum is σ = 12202120112. Its totient is φ = 12202120110.

The previous prime is 12202120067. The next prime is 12202120123. The reversal of 12202120111 is 11102120221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12202120111 - 2¹¹ = 12202118063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12202120091 and 12202120100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202120181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101060055 + 6101060056.

It is an arithmetic number, because the mean of its divisors is an integer number (6101060056).

Almost surely, 2^12202120111 is an apocalyptic number.

12202120111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202120111 is an equidigital number, since it uses as much as digits as its factorization.

12202120111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12202120111 its reverse (11102120221), we get a palindrome (23304240332).

The spelling of 12202120111 in words is "twelve billion, two hundred two million, one hundred twenty thousand, one hundred eleven".