200212001212123 has 2 divisors, whose sum is σ = 200212001212124. Its totient is φ = 200212001212122.

The previous prime is 200212001212099. The next prime is 200212001212129. The reversal of 200212001212123 is 321212100212002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200212001212123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200212001212123.

It is not a weakly prime, because it can be changed into another prime (200212001212129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100106000606061 + 100106000606062.

It is an arithmetic number, because the mean of its divisors is an integer number (100106000606062).

Almost surely, 2^{200212001212123} is an apocalyptic number.

200212001212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

200212001212123 is an equidigital number, since it uses as much as digits as its factorization.

200212001212123 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 19.

Adding to 200212001212123 its reverse (321212100212002), we get a palindrome (521424101424125).

The spelling of 200212001212123 in words is "two hundred trillion, two hundred twelve billion, one million, two hundred twelve thousand, one hundred twenty-three".