212021112229 has 2 divisors, whose sum is σ = 212021112230. Its totient is φ = 212021112228.

The previous prime is 212021112203. The next prime is 212021112239. The reversal of 212021112229 is 922211120212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176185865025 + 35835247204 = 419745^2 + 189302^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021112229 - 2²³ = 212012723621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021112239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010556114 + 106010556115.

It is an arithmetic number, because the mean of its divisors is an integer number (106010556115).

Almost surely, 2^212021112229 is an apocalyptic number.

It is an amenable number.

212021112229 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021112229 is an equidigital number, since it uses as much as digits as its factorization.

212021112229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 212021112229 in words is "two hundred twelve billion, twenty-one million, one hundred twelve thousand, two hundred twenty-nine".