212002229 has 2 divisors, whose sum is σ = 212002230. Its totient is φ = 212002228.

The previous prime is 212002199. The next prime is 212002261. The reversal of 212002229 is 922200212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112042225 + 99960004 = 10585^2 + 9998^2 .

It is a cyclic number.

It is not a de Polignac number, because 212002229 - 2⁸ = 212001973 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 212002229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212002129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106001114 + 106001115.

It is an arithmetic number, because the mean of its divisors is an integer number (106001115).

Almost surely, 2^212002229 is an apocalyptic number.

It is an amenable number.

212002229 is a deficient number, since it is larger than the sum of its proper divisors (1).

212002229 is an equidigital number, since it uses as much as digits as its factorization.

212002229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 212002229 is about 14560.2963225341. The cubic root of 212002229 is about 596.2752855358.

The spelling of 212002229 in words is "two hundred twelve million, two thousand, two hundred twenty-nine".