2102222111123 has 2 divisors, whose sum is σ = 2102222111124. Its totient is φ = 2102222111122.

The previous prime is 2102222111089. The next prime is 2102222111131. The reversal of 2102222111123 is 3211112222012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102222111123 - 2¹⁰ = 2102222110099 is a prime.

It is a super-2 number, since 2×2102222111123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2102222111095 and 2102222111104.

It is not a weakly prime, because it can be changed into another prime (2102222111623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051111055561 + 1051111055562.

It is an arithmetic number, because the mean of its divisors is an integer number (1051111055562).

Almost surely, 2^{2102222111123} is an apocalyptic number.

2102222111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102222111123 is an equidigital number, since it uses as much as digits as its factorization.

2102222111123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2102222111123 its reverse (3211112222012), we get a palindrome (5313334333135).

The spelling of 2102222111123 in words is "two trillion, one hundred two billion, two hundred twenty-two million, one hundred eleven thousand, one hundred twenty-three".