3870090320221 has 2 divisors, whose sum is σ = 3870090320222. Its totient is φ = 3870090320220.

The previous prime is 3870090320207. The next prime is 3870090320263. The reversal of 3870090320221 is 1220230900783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2815217535321 + 1054872784900 = 1677861^2 + 1027070^2 .

It is a cyclic number.

It is not a de Polignac number, because 3870090320221 - 2⁷ = 3870090320093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3870090320021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1935045160110 + 1935045160111.

It is an arithmetic number, because the mean of its divisors is an integer number (1935045160111).

Almost surely, 2^{3870090320221} is an apocalyptic number.

It is an amenable number.

3870090320221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3870090320221 is an equidigital number, since it uses as much as digits as its factorization.

3870090320221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The spelling of 3870090320221 in words is "three trillion, eight hundred seventy billion, ninety million, three hundred twenty thousand, two hundred twenty-one".