20220102009 has 20 divisors (see below), whose sum is σ = 30238749904. Its totient is φ = 13465156824.

The previous prime is 20220101983. The next prime is 20220102011. The reversal of 20220102009 is 90020102202.

It is a de Polignac number, because none of the positive numbers 2^k-20220102009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220101982 and 20220102000.

It is not an unprimeable number, because it can be changed into a prime (20220102029) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 64147 + ... + 211080.

Almost surely, 2^20220102009 is an apocalyptic number.

It is an amenable number.

20220102009 is a deficient number, since it is larger than the sum of its proper divisors (10018647895).

20220102009 is an equidigital number, since it uses as much as digits as its factorization.

20220102009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276146 (or 276137 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The spelling of 20220102009 in words is "twenty billion, two hundred twenty million, one hundred two thousand, nine".