211011000010121 has 2 divisors, whose sum is σ = 211011000010122. Its totient is φ = 211011000010120.

The previous prime is 211011000010061. The next prime is 211011000010141. The reversal of 211011000010121 is 121010000110112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106999660036096 + 104011339974025 = 10344064^2 + 10198595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211011000010121 is a prime.

It is not a weakly prime, because it can be changed into another prime (211011000010141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105505500005060 + 105505500005061.

It is an arithmetic number, because the mean of its divisors is an integer number (105505500005061).

Almost surely, 2^{211011000010121} is an apocalyptic number.

It is an amenable number.

211011000010121 is a deficient number, since it is larger than the sum of its proper divisors (1).

211011000010121 is an equidigital number, since it uses as much as digits as its factorization.

211011000010121 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 211011000010121 its reverse (121010000110112), we get a palindrome (332021000120233).

Subtracting from 211011000010121 its reverse (121010000110112), we obtain a palindrome (90000999900009).

The spelling of 211011000010121 in words is "two hundred eleven trillion, eleven billion, ten thousand, one hundred twenty-one".