380012221 has 2 divisors, whose sum is σ = 380012222. Its totient is φ = 380012220.

The previous prime is 380012219. The next prime is 380012251. The reversal of 380012221 is 122210083.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379704196 + 308025 = 19486^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 380012221 - 2¹ = 380012219 is a prime.

Together with 380012219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (380012251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190006110 + 190006111.

It is an arithmetic number, because the mean of its divisors is an integer number (190006111).

Almost surely, 2^380012221 is an apocalyptic number.

It is an amenable number.

380012221 is a deficient number, since it is larger than the sum of its proper divisors (1).

380012221 is an equidigital number, since it uses as much as digits as its factorization.

380012221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 380012221 is about 19493.9021491337. The cubic root of 380012221 is about 724.3234090517.

The spelling of 380012221 in words is "three hundred eighty million, twelve thousand, two hundred twenty-one".