338101221989 has 2 divisors, whose sum is σ = 338101221990. Its totient is φ = 338101221988.

The previous prime is 338101221923. The next prime is 338101222001. The reversal of 338101221989 is 989122101833.

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., 317814062500 + 20287159489 = 563750^2 + 142433^2 .

It is a cyclic number.

It is not a de Polignac number, because 338101221989 - 2¹⁶ = 338101156453 is a prime.

It is a super-2 number, since 2×338101221989² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338101221389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169050610994 + 169050610995.

It is an arithmetic number, because the mean of its divisors is an integer number (169050610995).

Almost surely, 2^338101221989 is an apocalyptic number.

It is an amenable number.

338101221989 is a deficient number, since it is larger than the sum of its proper divisors (1).

338101221989 is an equidigital number, since it uses as much as digits as its factorization.

338101221989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 338101221989 in words is "three hundred thirty-eight billion, one hundred one million, two hundred twenty-one thousand, nine hundred eighty-nine".