1011222210109 has 2 divisors, whose sum is σ = 1011222210110. Its totient is φ = 1011222210108.

The previous prime is 1011222210091. The next prime is 1011222210137. The reversal of 1011222210109 is 9010122221101.

Together with previous prime (1011222210091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 867142752025 + 144079458084 = 931205^2 + 379578^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011222210109 - 2¹⁷ = 1011222079037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011222210109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011222210169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505611105054 + 505611105055.

It is an arithmetic number, because the mean of its divisors is an integer number (505611105055).

Almost surely, 2^{1011222210109} is an apocalyptic number.

It is an amenable number.

1011222210109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011222210109 is an equidigital number, since it uses as much as digits as its factorization.

1011222210109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 1011222210109 in words is "one trillion, eleven billion, two hundred twenty-two million, two hundred ten thousand, one hundred nine".