210000111021011 has 2 divisors, whose sum is σ = 210000111021012. Its totient is φ = 210000111021010.

The previous prime is 210000111020969. The next prime is 210000111021017. The reversal of 210000111021011 is 110120111000012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210000111021011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210000111020983 and 210000111021001.

It is not a weakly prime, because it can be changed into another prime (210000111021017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000055510505 + 105000055510506.

It is an arithmetic number, because the mean of its divisors is an integer number (105000055510506).

Almost surely, 2^{210000111021011} is an apocalyptic number.

210000111021011 is a deficient number, since it is larger than the sum of its proper divisors (1).

210000111021011 is an equidigital number, since it uses as much as digits as its factorization.

210000111021011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 210000111021011 its reverse (110120111000012), we get a palindrome (320120222021023).

The spelling of 210000111021011 in words is "two hundred ten trillion, one hundred eleven million, twenty-one thousand, eleven".