2220102009 has 24 divisors (see below), whose sum is σ = 3299554440. Its totient is φ = 1437412608.

The previous prime is 2220101999. The next prime is 2220102037. The reversal of 2220102009 is 9002010222.

It can be written as a sum of positive squares in 4 ways, for example, as 12981609 + 2207120400 = 3603^2 + 46980^2 .

It is not a de Polignac number, because 2220102009 - 2⁴ = 2220101993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220101982 and 2220102000.

It is not an unprimeable number, because it can be changed into a prime (2220102089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183619 + ... + 195335.

It is an arithmetic number, because the mean of its divisors is an integer number (137481435).

Almost surely, 2^2220102009 is an apocalyptic number.

It is an amenable number.

2220102009 is a deficient number, since it is larger than the sum of its proper divisors (1079452431).

2220102009 is a wasteful number, since it uses less digits than its factorization.

2220102009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12329 (or 12326 counting only the distinct ones).

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

The square root of 2220102009 is about 47117.9584553491. The cubic root of 2220102009 is about 1304.5407306239.

The spelling of 2220102009 in words is "two billion, two hundred twenty million, one hundred two thousand, nine".