212211029 has 2 divisors, whose sum is σ = 212211030. Its totient is φ = 212211028.

The previous prime is 212211007. The next prime is 212211053. The reversal of 212211029 is 920112212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193488100 + 18722929 = 13910^2 + 4327^2 .

It is a cyclic number.

It is not a de Polignac number, because 212211029 - 2⁸ = 212210773 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212211029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212211059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105514 + 106105515.

It is an arithmetic number, because the mean of its divisors is an integer number (106105515).

Almost surely, 2^212211029 is an apocalyptic number.

It is an amenable number.

212211029 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211029 is an equidigital number, since it uses as much as digits as its factorization.

212211029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 212211029 is about 14567.4647416769. The cubic root of 212211029 is about 596.4709775476.

The spelling of 212211029 in words is "two hundred twelve million, two hundred eleven thousand, twenty-nine".