204222441989 has 2 divisors, whose sum is σ = 204222441990. Its totient is φ = 204222441988.

The previous prime is 204222441893. The next prime is 204222442013. The reversal of 204222441989 is 989144222402.

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., 183541125889 + 20681316100 = 428417^2 + 143810^2 .

It is a cyclic number.

It is not a de Polignac number, because 204222441989 - 2¹² = 204222437893 is a prime.

It is a super-3 number, since 3×204222441989³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204222441289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102111220994 + 102111220995.

It is an arithmetic number, because the mean of its divisors is an integer number (102111220995).

Almost surely, 2^204222441989 is an apocalyptic number.

It is an amenable number.

204222441989 is a deficient number, since it is larger than the sum of its proper divisors (1).

204222441989 is an equidigital number, since it uses as much as digits as its factorization.

204222441989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 204222441989 in words is "two hundred four billion, two hundred twenty-two million, four hundred forty-one thousand, nine hundred eighty-nine".