1001012220139 has 2 divisors, whose sum is σ = 1001012220140. Its totient is φ = 1001012220138.

The previous prime is 1001012220083. The next prime is 1001012220179. The reversal of 1001012220139 is 9310222101001.

1001012220139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001012220139 - 2¹¹ = 1001012218091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001012220179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500506110069 + 500506110070.

It is an arithmetic number, because the mean of its divisors is an integer number (500506110070).

Almost surely, 2^{1001012220139} is an apocalyptic number.

1001012220139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001012220139 is an equidigital number, since it uses as much as digits as its factorization.

1001012220139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1001012220139 in words is "one trillion, one billion, twelve million, two hundred twenty thousand, one hundred thirty-nine".