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1200022020209 is a prime number
BaseRepresentation
bin10001011101100110111…
…000101110000001110001
311020201110121010212000202
4101131212320232001301
5124130121114121314
62315141004324545
7152461443604625
oct21354670560161
94221417125022
101200022020209
11422a21167211
121746a4b43755
138921402780c
144211d41b185
1521336ada0de
hex11766e2e071

1200022020209 has 2 divisors, whose sum is σ = 1200022020210. Its totient is φ = 1200022020208.

The previous prime is 1200022020193. The next prime is 1200022020221. The reversal of 1200022020209 is 9020202200021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1034126286400 + 165895733809 = 1016920^2 + 407303^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200022020209 - 24 = 1200022020193 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200022220209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600011010104 + 600011010105.

It is an arithmetic number, because the mean of its divisors is an integer number (600011010105).

Almost surely, 21200022020209 is an apocalyptic number.

It is an amenable number.

1200022020209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200022020209 is an equidigital number, since it uses as much as digits as its factorization.

1200022020209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 1200022020209 in words is "one trillion, two hundred billion, twenty-two million, twenty thousand, two hundred nine".