211223003110001 has 2 divisors, whose sum is σ = 211223003110002. Its totient is φ = 211223003110000.

The previous prime is 211223003109983. The next prime is 211223003110027. The reversal of 211223003110001 is 100011300322112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203317683620401 + 7905319489600 = 14258951^2 + 2811640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211223003110001 is a prime.

It is not a weakly prime, because it can be changed into another prime (211223008110001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611501555000 + 105611501555001.

It is an arithmetic number, because the mean of its divisors is an integer number (105611501555001).

Almost surely, 2^{211223003110001} is an apocalyptic number.

It is an amenable number.

211223003110001 is a deficient number, since it is larger than the sum of its proper divisors (1).

211223003110001 is an equidigital number, since it uses as much as digits as its factorization.

211223003110001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211223003110001 its reverse (100011300322112), we get a palindrome (311234303432113).

The spelling of 211223003110001 in words is "two hundred eleven trillion, two hundred twenty-three billion, three million, one hundred ten thousand, one".