3221421441389 has 2 divisors, whose sum is σ = 3221421441390. Its totient is φ = 3221421441388.

The previous prime is 3221421441383. The next prime is 3221421441503. The reversal of 3221421441389 is 9831441241223.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2466416853289 + 755004588100 = 1570483^2 + 868910^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221421441389 - 2⁴ = 3221421441373 is a prime.

It is a super-2 number, since 2×3221421441389² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3221421441383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610710720694 + 1610710720695.

It is an arithmetic number, because the mean of its divisors is an integer number (1610710720695).

Almost surely, 2^{3221421441389} is an apocalyptic number.

It is an amenable number.

3221421441389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221421441389 is an equidigital number, since it uses as much as digits as its factorization.

3221421441389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 44.

The spelling of 3221421441389 in words is "three trillion, two hundred twenty-one billion, four hundred twenty-one million, four hundred forty-one thousand, three hundred eighty-nine".