1200020222309 has 2 divisors, whose sum is σ = 1200020222310. Its totient is φ = 1200020222308.

The previous prime is 1200020222267. The next prime is 1200020222341. The reversal of 1200020222309 is 9032220200021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1194983481409 + 5036740900 = 1093153^2 + 70970^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200020222309 - 2³² = 1195725255013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200020122309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600010111154 + 600010111155.

It is an arithmetic number, because the mean of its divisors is an integer number (600010111155).

Almost surely, 2^{1200020222309} is an apocalyptic number.

It is an amenable number.

1200020222309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200020222309 is an equidigital number, since it uses as much as digits as its factorization.

1200020222309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 1200020222309 in words is "one trillion, two hundred billion, twenty million, two hundred twenty-two thousand, three hundred nine".