212021122111229 has 2 divisors, whose sum is σ = 212021122111230. Its totient is φ = 212021122111228.

The previous prime is 212021122111217. The next prime is 212021122111261. The reversal of 212021122111229 is 922111221120212.

212021122111229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205526917164100 + 6494204947129 = 14336210^2 + 2548373^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021122111229 - 2¹² = 212021122107133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021122911229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010561055614 + 106010561055615.

It is an arithmetic number, because the mean of its divisors is an integer number (106010561055615).

Almost surely, 2^{212021122111229} is an apocalyptic number.

It is an amenable number.

212021122111229 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021122111229 is an equidigital number, since it uses as much as digits as its factorization.

212021122111229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 212021122111229 in words is "two hundred twelve trillion, twenty-one billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twenty-nine".