1022021102209 has 2 divisors, whose sum is σ = 1022021102210. Its totient is φ = 1022021102208.

The previous prime is 1022021102197. The next prime is 1022021102281. The reversal of 1022021102209 is 9022011202201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 732345715984 + 289675386225 = 855772^2 + 538215^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022021102209 - 2⁵ = 1022021102177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022021102209.

It is not a weakly prime, because it can be changed into another prime (1022021102009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511010551104 + 511010551105.

It is an arithmetic number, because the mean of its divisors is an integer number (511010551105).

Almost surely, 2^{1022021102209} is an apocalyptic number.

It is an amenable number.

1022021102209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022021102209 is an equidigital number, since it uses as much as digits as its factorization.

1022021102209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 1022021102209 in words is "one trillion, twenty-two billion, twenty-one million, one hundred two thousand, two hundred nine".