1380075336221 has 2 divisors, whose sum is σ = 1380075336222. Its totient is φ = 1380075336220.

The previous prime is 1380075336217. The next prime is 1380075336229. The reversal of 1380075336221 is 1226335700831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 850471284100 + 529604052121 = 922210^2 + 727739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380075336221 - 2² = 1380075336217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380075336229) 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, 690037668110 + 690037668111.

It is an arithmetic number, because the mean of its divisors is an integer number (690037668111).

Almost surely, 2^{1380075336221} is an apocalyptic number.

It is an amenable number.

1380075336221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380075336221 is an equidigital number, since it uses as much as digits as its factorization.

1380075336221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 1380075336221 in words is "one trillion, three hundred eighty billion, seventy-five million, three hundred thirty-six thousand, two hundred twenty-one".