20110102122009 has 16 divisors (see below), whose sum is σ = 27033743778624. Its totient is φ = 13296715723200.

The previous prime is 20110102122007. The next prime is 20110102122037. The reversal of 20110102122009 is 90022120101102.

It is not a de Polignac number, because 20110102122009 - 2¹ = 20110102122007 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20110102122007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14082562 + ... + 15444699.

It is an arithmetic number, because the mean of its divisors is an integer number (1689608986164).

Almost surely, 2^{20110102122009} is an apocalyptic number.

It is an amenable number.

20110102122009 is a deficient number, since it is larger than the sum of its proper divisors (6923641656615).

20110102122009 is a wasteful number, since it uses less digits than its factorization.

20110102122009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29529128.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 20110102122009 in words is "twenty trillion, one hundred ten billion, one hundred two million, one hundred twenty-two thousand, nine".