200112221111123 has 2 divisors, whose sum is σ = 200112221111124. Its totient is φ = 200112221111122.

The previous prime is 200112221111087. The next prime is 200112221111129. The reversal of 200112221111123 is 321111122211002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200112221111123 - 2³⁰ = 200111147369299 is a prime.

It is a super-2 number, since 2×200112221111123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200112221111095 and 200112221111104.

It is not a weakly prime, because it can be changed into another prime (200112221111129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100056110555561 + 100056110555562.

It is an arithmetic number, because the mean of its divisors is an integer number (100056110555562).

Almost surely, 2^{200112221111123} is an apocalyptic number.

200112221111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

200112221111123 is an equidigital number, since it uses as much as digits as its factorization.

200112221111123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 200112221111123 its reverse (321111122211002), we get a palindrome (521223343322125).

The spelling of 200112221111123 in words is "two hundred trillion, one hundred twelve billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty-three".