211404440029 has 2 divisors, whose sum is σ = 211404440030. Its totient is φ = 211404440028.

The previous prime is 211404440003. The next prime is 211404440069. The reversal of 211404440029 is 920044404112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198069502500 + 13334937529 = 445050^2 + 115477^2 .

It is a cyclic number.

It is not a de Polignac number, because 211404440029 - 2²⁷ = 211270222301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211404440069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105702220014 + 105702220015.

It is an arithmetic number, because the mean of its divisors is an integer number (105702220015).

Almost surely, 2^211404440029 is an apocalyptic number.

It is an amenable number.

211404440029 is a deficient number, since it is larger than the sum of its proper divisors (1).

211404440029 is an equidigital number, since it uses as much as digits as its factorization.

211404440029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 211404440029 in words is "two hundred eleven billion, four hundred four million, four hundred forty thousand, twenty-nine".