201219229 has 2 divisors, whose sum is σ = 201219230. Its totient is φ = 201219228.

The previous prime is 201219223. The next prime is 201219251. The reversal of 201219229 is 922912102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177502329 + 23716900 = 13323^2 + 4870^2 .

It is a cyclic number.

It is not a de Polignac number, because 201219229 - 2¹⁷ = 201088157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201219197 and 201219206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201219223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100609614 + 100609615.

It is an arithmetic number, because the mean of its divisors is an integer number (100609615).

Almost surely, 2^201219229 is an apocalyptic number.

It is an amenable number.

201219229 is a deficient number, since it is larger than the sum of its proper divisors (1).

201219229 is an equidigital number, since it uses as much as digits as its factorization.

201219229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 201219229 is about 14185.1763824071. The cubic root of 201219229 is about 585.9894900793.

The spelling of 201219229 in words is "two hundred one million, two hundred nineteen thousand, two hundred twenty-nine".