2201111012123 has 2 divisors, whose sum is σ = 2201111012124. Its totient is φ = 2201111012122.

The previous prime is 2201111012047. The next prime is 2201111012129. The reversal of 2201111012123 is 3212101111022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201111012123 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201111012129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100555506061 + 1100555506062.

It is an arithmetic number, because the mean of its divisors is an integer number (1100555506062).

Almost surely, 2^{2201111012123} is an apocalyptic number.

2201111012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201111012123 is an equidigital number, since it uses as much as digits as its factorization.

2201111012123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2201111012123 its reverse (3212101111022), we get a palindrome (5413212123145).

The spelling of 2201111012123 in words is "two trillion, two hundred one billion, one hundred eleven million, twelve thousand, one hundred twenty-three".