211121021111029 has 2 divisors, whose sum is σ = 211121021111030. Its totient is φ = 211121021111028.

The previous prime is 211121021111003. The next prime is 211121021111051. The reversal of 211121021111029 is 920111120121112.

211121021111029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210342520176100 + 778500934929 = 14503190^2 + 882327^2 .

It is a cyclic number.

It is not a de Polignac number, because 211121021111029 - 2¹¹ = 211121021108981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211121021110994 and 211121021111012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211121021111069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560510555514 + 105560510555515.

It is an arithmetic number, because the mean of its divisors is an integer number (105560510555515).

Almost surely, 2^{211121021111029} is an apocalyptic number.

It is an amenable number.

211121021111029 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121021111029 is an equidigital number, since it uses as much as digits as its factorization.

211121021111029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 211121021111029 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty-one million, one hundred eleven thousand, twenty-nine".