1082067381221 has 4 divisors (see below), whose sum is σ = 1097307766944. Its totient is φ = 1066826995500.

The previous prime is 1082067381163. The next prime is 1082067381223. The reversal of 1082067381221 is 1221837602801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1082067381221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1082067381223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7620192755 + ... + 7620192896.

It is an arithmetic number, because the mean of its divisors is an integer number (274326941736).

Almost surely, 2^{1082067381221} is an apocalyptic number.

It is an amenable number.

1082067381221 is a deficient number, since it is larger than the sum of its proper divisors (15240385723).

1082067381221 is an equidigital number, since it uses as much as digits as its factorization.

1082067381221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15240385722.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 1082067381221 in words is "one trillion, eighty-two billion, sixty-seven million, three hundred eighty-one thousand, two hundred twenty-one".