1010122112009 has 4 divisors (see below), whose sum is σ = 1012874488704. Its totient is φ = 1007369735316.

The previous prime is 1010122111987. The next prime is 1010122112059. The reversal of 1010122112009 is 9002112210101.

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 not a de Polignac number, because 1010122112009 - 2²⁰ = 1010121063433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010122112059) 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, 1376187797 + ... + 1376188530.

It is an arithmetic number, because the mean of its divisors is an integer number (253218622176).

Almost surely, 2^{1010122112009} is an apocalyptic number.

It is an amenable number.

1010122112009 is a deficient number, since it is larger than the sum of its proper divisors (2752376695).

1010122112009 is an equidigital number, since it uses as much as digits as its factorization.

1010122112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752376694.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1010122112009 in words is "one trillion, ten billion, one hundred twenty-two million, one hundred twelve thousand, nine".