1002022110209 has 2 divisors, whose sum is σ = 1002022110210. Its totient is φ = 1002022110208.

The previous prime is 1002022110197. The next prime is 1002022110253. The reversal of 1002022110209 is 9020112202001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 872490501184 + 129531609025 = 934072^2 + 359905^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002022110209 - 2³² = 997727142913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002022110809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501011055104 + 501011055105.

It is an arithmetic number, because the mean of its divisors is an integer number (501011055105).

Almost surely, 2^{1002022110209} is an apocalyptic number.

It is an amenable number.

1002022110209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002022110209 is an equidigital number, since it uses as much as digits as its factorization.

1002022110209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1002022110209 in words is "one trillion, two billion, twenty-two million, one hundred ten thousand, two hundred nine".