1002202209 has 6 divisors (see below), whose sum is σ = 1447625426. Its totient is φ = 668134800.

The previous prime is 1002202189. The next prime is 1002202217. The reversal of 1002202209 is 9022022001.

It can be written as a sum of positive squares in only one way, i.e., 709689600 + 292512609 = 26640^2 + 17103^2 .

It is not a de Polignac number, because 1002202209 - 2⁸ = 1002201953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1002202191 and 1002202200.

It is not an unprimeable number, because it can be changed into a prime (1002202219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55677892 + ... + 55677909.

Almost surely, 2^1002202209 is an apocalyptic number.

It is an amenable number.

1002202209 is a deficient number, since it is larger than the sum of its proper divisors (445423217).

1002202209 is a wasteful number, since it uses less digits than its factorization.

1002202209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111355807 (or 111355804 counting only the distinct ones).

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

The square root of 1002202209 is about 31657.5774341626. The cubic root of 1002202209 is about 1000.7335314667.

The spelling of 1002202209 in words is "one billion, two million, two hundred two thousand, two hundred nine".